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The last time Earth experienced a surface temperature similar to the PETM occurred about ______ million years ago. a.200 b.300 c.400 d.500

The last time Earth experienced a surface temperature similar to the PETM occurred about ______ million years ago. a.200 b.300 c.400 d.500

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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The last time Earth experienced a surface temperature similar to the PETM occurred about ______ million years ago.
a.200
b.300
c.400
d.500

The temperature in 2000 was ______°C warmer than the 1960–1990 average.
a.2
b.4
c.6
d.8

The temperature projected for 2100 is ______°C warmer than the 1960–1990 average.
a.2.0
b.4.5
c.6.0
d.8.0

Temperature of Planet Earth O Miocene Cm 05 0 cP UK Pal Pliocene t Holocene tocene Pleistocene UCA DYWE C Ar +14 PETM +25 +12 +20 +10 +8 15 +6 +10 2100 ne +5 fenjan Permian sleciation e -a a -10 s00 400 300 200 100 60 50 40 30 20 10 5 2 1000 800 600 400 200 20 15 10 5 o 4 3 Millionsof vears before present Thousandsof vears before present (2015 CE) Figure 12B-1. A record of temperature on Earth over the past 500 million years. The timescale (x-axis) depicts years before present, telescoping from millions of years before present on the left to thousands of years before present toward the right. The most recent peak in warming occurred during the transition from the Paleocene to the Eocene about 56 million years ago. The orange band (between 500 million years to 100 million years) shows the effect of extreme assumptions in application of the Geostationary Carbon Observatory (GeoCarb) reconstruction. [Glen Fergus 2014] °C vs 1960-1990 average °F vs 1960-1990average
Transcribed Image Text:Temperature of Planet Earth O Miocene Cm 05 0 cP UK Pal Pliocene t Holocene tocene Pleistocene UCA DYWE C Ar +14 PETM +25 +12 +20 +10 +8 15 +6 +10 2100 ne +5 fenjan Permian sleciation e -a a -10 s00 400 300 200 100 60 50 40 30 20 10 5 2 1000 800 600 400 200 20 15 10 5 o 4 3 Millionsof vears before present Thousandsof vears before present (2015 CE) Figure 12B-1. A record of temperature on Earth over the past 500 million years. The timescale (x-axis) depicts years before present, telescoping from millions of years before present on the left to thousands of years before present toward the right. The most recent peak in warming occurred during the transition from the Paleocene to the Eocene about 56 million years ago. The orange band (between 500 million years to 100 million years) shows the effect of extreme assumptions in application of the Geostationary Carbon Observatory (GeoCarb) reconstruction. [Glen Fergus 2014] °C vs 1960-1990 average °F vs 1960-1990average
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the temperature projected for the year 2110 is   C warmer than the 1960-1990 average?

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