Question

2. Why do jet streams have a wavy pattern?

3. Why do cold air masses and warm ones bump into each other?

please answer only if you know it. thank you!

Answer 1

Answer:

As the belt moves south, it pulls cool air from the Arctic toward the tropics. Then it switches direction, pulling warm air from the tropics toward the poles. Sometimes, in response to natural climate patterns, the jet stream becomes abnormally wavy.

When a warm air mass meets a cold air mass, the warm air rises since it is lighter. At high altitude it cools, and the water vapor it contains condenses. This type of front is called a warm front.