The dark, smooth surface areas of the moon are known as

the results is a decrease in air temperature with an increase of altitude.

explanation:

a lot of it means it can be "burned" for energy and sold at one price. if it is scarce, the price will go up

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.