Which of the following statements about erosion is true?
a.
erosion occurs as a result of drastic changes in temperature.
b.
erosion occurs when wind or water moves over sediment, soil, or rocks.
c.
physical and chemical are the two types of erosion.
d.
movement is not required for erosion to take place.

What is one disadvantage of desalination? a - the process kills fish. b - the process uses fuel that is expensive. c - the process makes water that is unsafe to drink. d - the process is too difficult to carry out in big cities. quick taking a !

What is the 77 element on the periodtic table

Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.