What causes pressure to build up in the atmosphere? Group of answer choices

cool air coming down to the ground a building up

warm air coming down to the ground and building up

both warm and cool air rising and building up

coll air rising and building up

Acurious child asked his mother: “mommy, why are some of your hairs turning grey? ” the mother tried to use this occasion to teach her child: “it is because of you, dear. every bad action of yours will turn one of my hairs grey! ” the child replied innocently: “now i know why grandmother has only grey hairs on her head.”