Which behavior can reduce pollution that occurs due to the use of coal

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

Chicken pox and hepatitis are bacterial diseases. true or false?

Which of the following describes a boom period? a. as one population increases, another population decreases. b. as one population increases, the other population also increases. c. as one population decreases, another population increases. d. as one population decreases, another population also decreases