Question 17 Oceans are salter than rivers due to massive areas of evaporation in

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Question 17 Oceans are salter than rivers due to massive areas of evaporation in the oceans. Question 18 As global water shortages loom, some locations resort to desalination: generally an expensive and complex process of removing salt from sea water, thereby creating a supply of fresh water. Question 19 According to our online class lectures, the hockey stick graph was created by the IPCC, and shows the affect of human activity on climate change. Question 20 Rainfall amounts are different from temperature measurements since individual values over a month can differ by orders of magnitude, for example, 10.0 inches vs. 0.1 inches. This moans that monthly rainfall averages may not necessarily be as good an indicator of how much rain to expect for that month as average temperatures are for monthly temperatures.

Explanation / Answer

Q. 17) True

Q. 18) True but certain conditions apply.

Q. 19) True

Q. 20) False

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