I need help on 3 and 4 please I'm very confused and can not answer these questions I'm in sixth grade and it's hard

I need help on 3 and 4 please Im very confused and can not answer these questions Im in sixth grade and its hard class=

Respuesta :

D. Wind will always move from areas of high pressure to low pressure. It's the reason we have weather, or one of them. Temperature is another factor.

B. That is the definition of the greenhouse effect.