Please answer as many as you can​

Which environment would most likely not contain fossils? a a thick deposit of cracked, dried mud b sediment deposited in a sandy river bed c intrusive rock formed from cooled magma d layers of sand accumulated for a century

Which factors add to the greenhouse effect and are caused by human activities?

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called