The Russian taiga or boreal forest is the largest forest on earth, and acts as a major carbon dioxide sink that helps absorb anthropogenic greenhouse gases. The removal of the Russian taiga would contribute significantly to global warming
Indicate whether the statement is true or false
T
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Which of the following reaction energies is the most endothermic?
A. 125 kJ/mole B. 540 kJ/mole C. ?540 kJ/mole D. ?125 kJ/mole E. not enough information given
Judge the following sentence according to the criteria given below. Continental crust dominated by rocks older than 1 billion years but no ocean crust older than 180 million years exists because oceanic crust is created at mid-ocean ridges
A) The assertion is correct but the reason is incorrect. B) The assertion is incorrect but the reason is correct. C) The assertion and the reason are both correct, and the reason is valid. D) The assertion and the reason are both correct, but the reason is invalid. E) Both the assertion and the reason are incorrect.
Most glacial ice originates as
A) fluffy snow. B) sea water. C) hard ice. D) soft ice.
Which of the following statements best describes how time impacts soil formation?
A. over time, more clay minerals accumulate in the uppermost layer to form topsoil. B. over time, a soil will become more homogenous. C. time does not impact soil formation. D. over time, more distinct soil horizons will form, each with their own characteristics. E. over time, soils become enriched with air and water.