21. Which of the following is not true about lightning? a. The chance of being s

ID: 159656 • Letter: 2

Question

21. Which of the following is not true about lightning?

a. The chance of being struck by lightning generally increases with height

b. Most people struck by lightning survive.

c. Lightning is akin to static electricity.

d. Lightning never strikes the same place twice.

22. Why do convective clouds often spread out into "anvil" clouds?

a. Because they become glaciated;

b. Because the tropopause acts like a lid on convection

c. Because they develop electrical potential

d. Because their density increases

e. Because they block out the sun and surface heating stops

23. Within a thunderstorm, the lower part of the cloud is predominantly ________ charged, and the upper part is ________ charged.

a. negatively, positively

b. negatively, negatively

c. neutrally, both positively and negatively

d. positively, negatively

e. positively, positively

24. If you are in the middle of a field or golf course when a thunderstorm begins and you cannot quickly get to shelter, you should ________.

a. stand straight and very still

b. lie flat on the ground

c. seek the protection of the nearest tree

d. crouch as low as possible

e. All of the above are equally good options.

25. Which of the following is not a criterion for a thunderstorm to be classified as severe?

a. it produces large hail.

b. It produces strong winds.

c. It spawns a tornado

d. It produces heavy rain.

e. All of the above are criteria for severe thunderstorms

21.d

23.a. negatively, positively

24.d. crouch as low as possible

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