Since the appearance of Cro-Magnon, what has been the major area of human evolution? What will be an ideal response?
Human evolution since Cro-Magnon has been related to cultural changes rather than biological
changes.
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Which of the following best describes renewable energy resources?
A) They currently supply 20% of the Earth's electricity. B) They contribute only 70% as much greenhouse gases as fossil fuels do. C) They have been largely ignored by the Obama administration. D) They are unsuitable for the economies of developing nations.
What statement best describes a mole?
A. the amount of molecules or atoms in 1 gram of something B. a little furry mammal that lives in the ground C. a very small number chemists use to count atoms or molecules D. It is a very large number chemists use to count atoms or molecules. E. none of the above
The biosphere is best defined as ________
A) all Earth's organisms and the nonliving environment with which they interact B) all living and nonliving parts, including the flow of energy and matter C) all Earth's organisms and their physical and aquatic environment where energy and matter are cycled D) a grouping of plants and animals that interact with one another E) a regional grouping of plants, animals, and abiotic factors
State the principle of fossil succession in your own words
What will be an ideal response?