The figure below shows histograms of Sr isotopic compositions for modern mid- ocean ridge basalts (MORB) and granites and gneisses of variable ages. From the following hypotheses, choose the three hypotheses that best explain the histograms' data.

Q: 15. A Seismograph is a. An instrument used to detect and record earthquakes b. An instrument that wa...

A: Earthquake is shaking of the surface. They are caused by the sudden release of energy in the Earth's...

Q: DESCRIBE MITIGATION AND ADAPTATION AS two main approaches USED TO  tackle the problem of global warm...

A: Though global warming and climate change are the natural events but human activities have increased ...

Q: How do we know that the outer core is liquid?

A: Earth is the third planet in the solar system. It is a terrestrial planet, meaning it has a rocky an...

Q: . The order in which seismic waves from an earthquake arrive at a seismic recording station is A the...

A: Earthquakes release energy in the forms of seismic waves. Seismic waves can be described as disturba...

Q: Non-explosive eruptions are also known as effusive eruptions. True or False

A: Non-explosive eruptions are also known as effusive eruptions.

Q: In a map view of a geologic dome as shown in Figure 5, what is true about the age of rocks? O A Age ...

A: in a map view of a geologic dome as shown in Figure 5, what is true about the age of rocks?

Q: What geologic structure is represented in the diagram below? which block of rock (Side A OR Side B) ...

A: Geology is the branch of science which deals with the study of the earth and all the geologic featur...

Q: In a full moon and a lunar eclipse, is Earth in between the sun and Moon in both cases? (Yes or No) ...

A: In a full moon and a lunar eclipse, is Earth in between the sun and Moon in both cases?

Q: 22. Which of the following is not a type of vegetation found in Central America? a. Spanish moss b. ...

A: There are processes that are destructive, there are processes that are constructive, and these proce...

Q: Why are the ice flow vectors the smallest near the base of the glacier?

A:  Why are the ice flow vectors the smallest near the base of the glacier?

Q: Planetary astronomers think the Caloris Basin on Mercury is a. A dry sea floor b. A network of lova...

A: Mercury is the smallest planet in the solar system, which is located very nearer to the Sun. It lack...

Q: Explain the importance of understanding the aspects of climate change from a physical geography stan...

A: Climate change is the global warming and long-term change in weather pattern. It is very crucial to ...

Q: Using your own words, give a detailed definition of a soil. What is a true soil and how is it differ...

A:  Earth is the third planet in the solar system and a terrestrial planet as well. The earth's surface...

Q: 1. Which of these statements about the structure of soil is incorrect? a. Soils that are columnar-st...

A: Soil structure is one of the main features of a soil horizon. Different horizons in the soil shows d...

Q: 63. The map below indicates the possible locations of some of the Earth's continents in the past.

A: The continental drift theory is proposed by Alfred Wegner in 1910. He suggested that at the beginnin...

Q: 2. How were the iron beds in the oceans formed? After billions of years, cyanobacteria turns into ir...

A: Iron oxide is an inorganic compound that is composed of two elements; Iron and Oxygen. The iron oxid...

Q: 6. What controls wildfire behavior? A Fuel, topography and weather B Ground fires, surface fires and...

A: A hazard is any agent that can cause harm to humans and the environment. Risk is the possibility of ...

Q: Explain how figure 16.3 shows that Earth would experience additional warming even if we stopped gree...

A: Throughout the history, climate of the Earth has changed. There have been seven cycles of ice age in...

Q: What is the main evidence that a meteor impact was responsible for the large mass extinction at the ...

A: The geological timescale is the systematic classification of the chronological data according to the...

Q: 7. Which statement does not describe what analysis can determine in an experiment? Analysis can dete...

A: Which statement does not describe what analysis can determine in an experiment?

Q: Describe the differences between active and passive continental margins.  Be sure to include how var...

A: Based on different bathymetric studies such as sounding, echo sounding, satellite studies, seismic r...