A) What role does radiation play warming the atmosphere? B) How would this warming be different if the Earth's ATM was a pure oxygen environment?
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How was the sat? what type of questions for math, writing and reading. did anyone get a near perfect score and if so how long did it take to study. i am very stressed and want to get at least a 1450.

Afish fossil is found in a rock. a foot bone and tooth are found in an older layer of the same rock. what can scientists learn from the rock? a) the area changed from land to water. b) the area changed from water to land. c) the area has always been land. d) the area was once an ocean.

Compare the advantages and disadvantages of using cash instead of a credit card to obtain good services