Plate tectonics works today in the same way as in the past. Can you project the future positions of the continents by looking at a map of their present positions and the positions of the mid-ocean ridges (see Fig. 2.5)? Which oceans are growing and which are shrinking? Where will new oceans form? FIGURE 2.5 The major features of the sea floor. Compare this map with Figure 2.6.

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Answer 1

Textbook Question

Chapter 2, Problem 1CT

Plate tectonics works today in the same way as in the past. Can you project the future positions of the continents by looking at a map of their present positions and the positions of the mid-ocean ridges (see Fig. 2.5)? Which oceans are growing and which are shrinking? Where will new oceans form?

FIGURE 2.5 The major features of the sea floor. Compare this map with Figure 2.6.

Chapter 2, Problem 1CT, Plate tectonics works today in the same way as in the past. Can you project the future positions of

Expert Solution

Summary Introduction

To predict: The future positions of the continents by looking at the map of their present positions and the positions of the mid-ocean ridges.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years that result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The future positions of the continents are given in Table 1.

Tabular representation: The following table shows the future positions of the continents.

Table 1: The future positions of the continents

Continents	Future positions
North and South America	Farther west toward the Pacific Ocean
Europe and Asia	Farther southeast
Australia	Farther northeast
Africa	Farther east

Expert Solution

Summary Introduction

To determine: The oceans that are growing and shrinking.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The shrinking ocean is Pacific Ocean (expected to be narrower) and the growing ocean is Atlantic Ocean (expected to be wider).

Expert Solution

Summary Introduction

To determine: Where will the new oceans form.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called Plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The edges of several plates are formed by the mid-ocean ridges. At this point, the lithospheric plates move apart to form the new oceanic lithosphere (new sea floor). If the plate contains a block of continental crust, the plate moves away from the ridge, and the continent is carried along with the plate.

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The illustration shows roughly how changes in Earth's crust have moved the continents over time. The time line at the base of the figure shows the general geologic periods and eras for each of the continental configurations shown. The faint lines drawn through the ancient supercontinents of Gondwana, Pangea, and Laurasia outline the modern continents that these supercontinents contained. The color difference between the continents helps to draw your attention to which continents formed Gondwana (twice) and which continents formed Laurasia. Imagine that a species of flightless bird lived on the supercontinent Laurasia during the Jurassic period. By the end of the Jurassic period, however, this species had gone extinct. Based on the image above, on which modern-day continents would you expect to find fossils of this species? Check all that apply. South America Europe-Asia North America Australia

Explain why there the area around the pacific plate in the Pacific Ocean is called the ring of fire ? What is occurring there and why ?

Choose the answer that best fits the blank. Hundreds of years ago, geographers first noticed that many of Earth's continents have shapes that seem to "fit together" like a big puzzle that was broken up. Because of this, they theorized that the continents had slowly changed position over time. The explanation for exactly how this movement occurred, however, did not become clear until geologic research in the 1960s led geologists to formalize the theory of _______ . This scientific theory states that continents move because they are a part of a series of plates that form Earth's crust. These plates shift around the planet, moving on a bed of liquid, hot rock known as magma. A.plate tectonicsB. continent driftC. paleomagnetism

Answer 2

Textbook Question

Chapter 2, Problem 1CT

Plate tectonics works today in the same way as in the past. Can you project the future positions of the continents by looking at a map of their present positions and the positions of the mid-ocean ridges (see Fig. 2.5)? Which oceans are growing and which are shrinking? Where will new oceans form?

FIGURE 2.5 The major features of the sea floor. Compare this map with Figure 2.6.

Chapter 2, Problem 1CT, Plate tectonics works today in the same way as in the past. Can you project the future positions of

Expert Solution

Summary Introduction

To predict: The future positions of the continents by looking at the map of their present positions and the positions of the mid-ocean ridges.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years that result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The future positions of the continents are given in Table 1.

Tabular representation: The following table shows the future positions of the continents.

Table 1: The future positions of the continents

Continents	Future positions
North and South America	Farther west toward the Pacific Ocean
Europe and Asia	Farther southeast
Australia	Farther northeast
Africa	Farther east

Expert Solution

Summary Introduction

To determine: The oceans that are growing and shrinking.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The shrinking ocean is Pacific Ocean (expected to be narrower) and the growing ocean is Atlantic Ocean (expected to be wider).

Expert Solution

Summary Introduction

To determine: Where will the new oceans form.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called Plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The edges of several plates are formed by the mid-ocean ridges. At this point, the lithospheric plates move apart to form the new oceanic lithosphere (new sea floor). If the plate contains a block of continental crust, the plate moves away from the ridge, and the continent is carried along with the plate.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 3

Textbook Question

Chapter 2, Problem 1CT

Plate tectonics works today in the same way as in the past. Can you project the future positions of the continents by looking at a map of their present positions and the positions of the mid-ocean ridges (see Fig. 2.5)? Which oceans are growing and which are shrinking? Where will new oceans form?

FIGURE 2.5 The major features of the sea floor. Compare this map with Figure 2.6.

Chapter 2, Problem 1CT, Plate tectonics works today in the same way as in the past. Can you project the future positions of

Expert Solution

Summary Introduction

To predict: The future positions of the continents by looking at the map of their present positions and the positions of the mid-ocean ridges.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years that result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The future positions of the continents are given in Table 1.

Tabular representation: The following table shows the future positions of the continents.

Table 1: The future positions of the continents

Continents	Future positions
North and South America	Farther west toward the Pacific Ocean
Europe and Asia	Farther southeast
Australia	Farther northeast
Africa	Farther east

Expert Solution

Summary Introduction

To determine: The oceans that are growing and shrinking.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The shrinking ocean is Pacific Ocean (expected to be narrower) and the growing ocean is Atlantic Ocean (expected to be wider).

Expert Solution

Summary Introduction

To determine: Where will the new oceans form.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called Plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The edges of several plates are formed by the mid-ocean ridges. At this point, the lithospheric plates move apart to form the new oceanic lithosphere (new sea floor). If the plate contains a block of continental crust, the plate moves away from the ridge, and the continent is carried along with the plate.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 4

Textbook Question

Chapter 2, Problem 1CT

Plate tectonics works today in the same way as in the past. Can you project the future positions of the continents by looking at a map of their present positions and the positions of the mid-ocean ridges (see Fig. 2.5)? Which oceans are growing and which are shrinking? Where will new oceans form?

FIGURE 2.5 The major features of the sea floor. Compare this map with Figure 2.6.

Chapter 2, Problem 1CT, Plate tectonics works today in the same way as in the past. Can you project the future positions of

Expert Solution

Summary Introduction

To predict: The future positions of the continents by looking at the map of their present positions and the positions of the mid-ocean ridges.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years that result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The future positions of the continents are given in Table 1.

Tabular representation: The following table shows the future positions of the continents.

Table 1: The future positions of the continents

Continents	Future positions
North and South America	Farther west toward the Pacific Ocean
Europe and Asia	Farther southeast
Australia	Farther northeast
Africa	Farther east

Expert Solution

Summary Introduction

To determine: The oceans that are growing and shrinking.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The shrinking ocean is Pacific Ocean (expected to be narrower) and the growing ocean is Atlantic Ocean (expected to be wider).

Expert Solution

Summary Introduction

To determine: Where will the new oceans form.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called Plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The edges of several plates are formed by the mid-ocean ridges. At this point, the lithospheric plates move apart to form the new oceanic lithosphere (new sea floor). If the plate contains a block of continental crust, the plate moves away from the ridge, and the continent is carried along with the plate.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Answer 5

Textbook Question

Answer 6

Textbook Question

Answer 7

Expert Solution

Summary Introduction

To predict: The future positions of the continents by looking at the map of their present positions and the positions of the mid-ocean ridges.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years that result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The future positions of the continents are given in Table 1.

Tabular representation: The following table shows the future positions of the continents.

Table 1: The future positions of the continents

Continents	Future positions
North and South America	Farther west toward the Pacific Ocean
Europe and Asia	Farther southeast
Australia	Farther northeast
Africa	Farther east

Expert Solution

Summary Introduction

To determine: The oceans that are growing and shrinking.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The shrinking ocean is Pacific Ocean (expected to be narrower) and the growing ocean is Atlantic Ocean (expected to be wider).

Expert Solution

Summary Introduction

To determine: Where will the new oceans form.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called Plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The edges of several plates are formed by the mid-ocean ridges. At this point, the lithospheric plates move apart to form the new oceanic lithosphere (new sea floor). If the plate contains a block of continental crust, the plate moves away from the ridge, and the continent is carried along with the plate.

Answer 8

Expert Solution

Summary Introduction

To predict: The future positions of the continents by looking at the map of their present positions and the positions of the mid-ocean ridges.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years that result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The future positions of the continents are given in Table 1.

Tabular representation: The following table shows the future positions of the continents.

Table 1: The future positions of the continents

Continents	Future positions
North and South America	Farther west toward the Pacific Ocean
Europe and Asia	Farther southeast
Australia	Farther northeast
Africa	Farther east

Answer 9

Expert Solution

Answer 10

Expert Solution

Answer 11

Expert Solution

Answer 12

Summary Introduction

To predict: The future positions of the continents by looking at the map of their present positions and the positions of the mid-ocean ridges.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years that result in the geographical changes of the Earth.

Answer 13

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The future positions of the continents are given in Table 1.

Tabular representation: The following table shows the future positions of the continents.

Table 1: The future positions of the continents

Continents	Future positions
North and South America	Farther west toward the Pacific Ocean
Europe and Asia	Farther southeast
Australia	Farther northeast
Africa	Farther east

Answer 14

Expert Solution

Summary Introduction

To determine: The oceans that are growing and shrinking.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The shrinking ocean is Pacific Ocean (expected to be narrower) and the growing ocean is Atlantic Ocean (expected to be wider).

Answer 15

Expert Solution

Answer 16

Expert Solution

Answer 17

Expert Solution

Answer 18

Summary Introduction

To determine: The oceans that are growing and shrinking.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Answer 19

Explanation of Solution

Plate tectonics are the lithospheric plates composed of continental and oceanic lithosphere. Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The shrinking ocean is Pacific Ocean (expected to be narrower) and the growing ocean is Atlantic Ocean (expected to be wider).

Answer 20

Expert Solution

Summary Introduction

To determine: Where will the new oceans form.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called Plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Explanation of Solution

Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The edges of several plates are formed by the mid-ocean ridges. At this point, the lithospheric plates move apart to form the new oceanic lithosphere (new sea floor). If the plate contains a block of continental crust, the plate moves away from the ridge, and the continent is carried along with the plate.

Answer 21

Expert Solution

Answer 22

Expert Solution

Answer 23

Expert Solution

Answer 24

Summary Introduction

To determine: Where will the new oceans form.

Introduction: The continents in the earth’s crust or plates that float on the mantle portion of the Earth are called Plate tectonics. The movement of plate causes formation of the mountain and continents over a millions of years, which result in the geographical changes of the Earth.

Answer 25

Explanation of Solution

Refer to Fig. 2.5, “The major features of the sea floor”, in the text book. The edges of several plates are formed by the mid-ocean ridges. At this point, the lithospheric plates move apart to form the new oceanic lithosphere (new sea floor). If the plate contains a block of continental crust, the plate moves away from the ridge, and the continent is carried along with the plate.

Answer 26

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