Why do cells need to divide?
a. contain to many chromosomes.
b. cells need to get rid of waste products.
c. cells cannot live unless they divide often.
d. cell division is how organisms grow

Now it's your turn to investigate human impact around the world. grab your virtual lab coat and put on your environmental science hat. you will be taking a trip around the globe to explore three locations. at each location, you will investigate the cause and effect relationships of deforestation, desertification, and urbanization. you will also gather evidence of how these factors have impacted the environment over time