What are two ways that scientists access rock samples?

What is an animal that lives by preying on other animals

Consider the last statement in the prompt: "people take such environmental factors into account in their choices when deciding where to live." do all people have a choice as to where they live? what factor plays a key role in this decision and may therefore play a large role in determining quality of life?

Contrast how pollination is different among gymnosperms and angiosperms.