In the valleys of central and southern California, dry, sinking air produces an inversion that inhibits the development of towering cumulus clouds during the summer. Hence, in these regions, thunderstorms are most frequent in winter and spring, particularly when cold, moist, conditionally unstable air aloft moves over moist, mild surface air

a. True
b. False


ANSWER: True

Environmental & Atmospheric Sciences

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Prime agricultural land in the United States is being replaced with

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