Which of these statements concerning pressure and weather are correct? I. Low pr

Question

Which of these statements concerning pressure and weather are correct?

I. Low pressure in a region tends to draw in storms

II. High pressure in a region usually indicates clear weather

III. Changes in pressure from regino to region are responsible for winds

a. I only

b. III only

c. I and II

d. I and III

e. I, II, and III

According to Boyle's law, if the pressure of a gas is decreased by a factor of five then the _____ of a gas in _____by factor of _____

a. volume, increased, five

b. volume, decreased, 1/5th

c. volume, increased, 15

d. temperature, increased, five

e. temperature, decreased, 1/5th

Explanation / Answer

1) answer : d.) I and III

explanation: low pressure causes stroms and winds flow always high pressure to low pressure . so these are correct .

2) answer : a. volume, increased, five

boyle's law :

P = K / V

pressure is inversly proportional to volume . so volume increases pressure decreases.

so correct answer a. volume, increased, five

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