What causes air to cool when cumulus clouds are formed? Warm air moving over the top of a cold front

Air moving over cooler ground

Cold air moving over the top of warm air

Air, warmed by the earth, rises, expands and cools

Seed plants that lived during the carboniferous impact life on earth today because a. they are the ancestors of all plant life on earth. b. their remains formed coal, which is an important resource. c. they produced fossils that are used to date many geologic events. d. their presence caused oxygen levels to drop, allowing animals to evolve.

Why did other countries want to have a part in what was occurring in southwest asia?

The rwandan patriotic front and the interahamwe were a. relief agencies b. military groups c. political parties d. nonprofit organizations select the best answer from the choices provided. a b c d