What is the first supercontinent recognized with some certainty, and when did it begin fragmenting?
The first supercontinent is Rodinia, and it began fragmenting 750 million years ago.
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Which of the following is true of a hormone?
A) It is produced at the site of its action. B) It is produced at one location and then transported to its site of action. C) Either a or b is true, depending on the hormone. D) Neither a nor b is true.
Briefly discuss the various motions of Earth. What motion is often mistakenly credited for causing seasons here on Earth? How are these motions related (if at all) to the modern calendar that we use today?
What will be an ideal response?
Cap-and-trade is a system that ________
A) has been repealed by Congress as useless in diminishing pollution B) allows industries that pollute at levels below the federal cap to sell their extra permits to industries that pollute at levels above the cap C) specifies a certain cap on industrial pollutants that can be traded to other nations D) rapidly brings pollution emissions to near zero for participating industries E) allows industries to set their own levels for pollution emission so trading can continue
Identify other foods you eat that come from tropical rainforests, and describe how their cultivation affects the forests
What will be an ideal response?