The two primary materials that geologists use as clues to understand Earth's past are
____________________ and ____________________. Fill in the blank(s) with the appropriate word(s).
rocks, fossils
fossils, rocks
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Using the GINI index, more than any other high-income country, the United States has
A) the lowest life expectancies and more children in poverty. B) more people in prison and fewer children in poverty. C) the highest life expectancies, fewer people in prison, and more children in poverty. D) the lowest life expectancies, more people in prison, and more children in poverty.
The annual range in temperature is larger near the equator than in the middle of North America
Indicate whether the statement is true or false
Match the environment of deposition with the appropriate category. Answers will be used more than once
A) Marine environment B) Continental environment C) Transitional environment 1) Alluvial fan 2) Deep marine 3) Mudflat 4) Swamp 5) Stream 6) Beach 7) Lakes 8) Reef
Many ecologists think of ecosystems and even the Earth as a superorganism because its systems appear to be:
A. Self-regulating and self-stabilizing B. Unregulated C. Unchangeable D. Hierarchical E. Completely unpredictable