Which of the following is true regarding mountains Group of answer choices a. mountains are warm because they are closer to the sun b. the day temps and night temps do not differ much because of the abundant cloud cover c. the air pressure in mountains is lower than at sea level d. are usually densely populated

c. the air pressure in mountains is lower than at sea level

Explanation:

It is common knowledge that pressure decreases with altitude. The implication of this is that the pressure at the mountain top is much less than the pressure at sea level.

As  we get to higher altitudes, the amount of gas molecules present in air decreases rapidly. That is, the air becomes less dense than air nearer to sea level. Hence the expression; "pressure decreases with height".

d. new methods of assembly are introduced.

explanation:

this allows for the goods to be made on a larger scale. not faster because now it is shown to be made better, hence the greater productivity in the question. it is calling for something new to be introduced.

answers.com says temperate reagions