Magma below Earth's surface cools quickly, what size are the mineral crystals?

a-small
b-medium
c-large
d-microscopic

Which of these is a drawback of using natural gas? a. it is fairly safe for use in homes.b. it burns more cleanly than crude oil products.c. scientists have developed new ways of extracting it.d. during its extraction, groundwater can be contaminated.

What is a social problem that affects your life? how does it affect you, your family, and/or your community?

Which of the following is also known as the eastern european plain and stretches from eastern poland to the ural mountains? russian plain? west siberian plain? central siberian plateu? eastern highlands?