Why are Mesozoic and Cenozoic paleogeographic reconstructions more accurate than reconstructions for earlier time
intervals?
a. Mesozoic and Cenozoic rocks are better preserved on ocean floor
b. Mesozoic and Cenozoic rocks have not been destroyed by subduction
c. Mesozoic and Cenozoic rocks were deposited underwater.
d. Mesozoic and Cenozoic rocks have not experienced erosion.
e. Very few tectonic events have occurred since Mesozoic and Cenozoic time
b
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The Little Ice Age (LIA) may have been caused by
A) periods of high sunspot activity. B) periods of no solar irradiance. C) Keeling curves. D) periods of low sunspot activity.
A UN-backed certification plan, called the __________ __________, designed to ensure that only legally mined rough diamonds reach the market, was endorsed by 45 countries in 2002
Fill in the blank(s) with correct word
Carbon dioxide (CO2 ) produced from human activities is amplifying Earth's natural greenhouse effect
Indicate whether the statement is true or false
The Navajo Sandstone, such as that exposed at Zion National Park in Utah, is evidence of a ________ environment during the Jurassic Period in the western United States
A) beach B) continental shelf C) lacustrine D) desert