Judge the following sentence according to the criteria given below: In freshwater lakes, cooling or

warming to 0.4?C is an important tipping point BECAUSE 0.4?C is the actual temperature when lake
water freezes.
a. The assertion and the reason are both correct, and the reason is valid.
b. The assertion and the reason are both correct, but the reason is invalid.
c. The assertion is correct, but the reason is incorrect.
d. The assertion is incorrect, but the reason is correct.
e. Both the assertion and the reason are incorrect


E

Environmental & Atmospheric Sciences

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The global temperature trend has been generally upward since the last ice age, but the rate of increase has recently

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Once established, a theory is always correct and cannot be changed

a. True b. False

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Explain the pros and cons of using the synthetic organic pesticide DDT against malarial mosquitoes

What will be an ideal response?

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In rich countries, such as the United States, higher percentages of national budgets are spent on senior citizen centers than on

A) elementary schools. B) health care. C) military. D) social security.

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