Question

Under what conditions might alpine valleys see moderate or strong winds?

1) During a storm
2) In the presence of high pressure systems
3) When warm air rises from the valley floor
4) All of the above

Answer 1

Alpine valleys can experience moderate or strong winds during a storm, in the presence of high pressure systems, and when warm air rises from the valley floor; hence, all of the above conditions apply.

Step-by-step explanation:

Alpine valleys may see moderate or strong winds under various conditions. (1) During a storm, the pressure in the atmosphere is a determining factor for weather, and strong winds can develop due to greater pressure differences.

(2) In the presence of high pressure systems, air moves towards regions of lower pressure, which can cause wind to pick up speed. (3) When warm air rises from the valley floor, it can create an updraft. Such rising warm air often contributes to wind formation. Therefore, the correct answer to the question is (4) All of the above conditions might lead to moderate or strong winds in alpine valleys.