How does the amount of leaves on a tree affect how many birds will build nests in it? Hypothesis:
Independent variable:
Dependent variable:
Control variable:

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

People with one sickle cell allele are not likely to get malaria. what is this an example of?

Brian made this table to organize his notes on changes of state change of state energy change melting gain freezing lose deposition gain condensation lose