Answer:
D.
Explanation:
In general, a scientific law is the description of an observed phenomenon. It doesn't explain why the phenomenon exists or what causes it. The explanation of a phenomenon is called a scientific theory.
The second one changes in the amount of atmospheric gases because it think it might effect everyone including plants and animals because will all breath the same air rather than a mountain building it might affect the animals that like there.
The two natural resources that will be most affected as people try to meet the growing demand for food are the use of land and water.
Immigration followed by competition
I hope this right, if its not, sorry =)
Here are some nicknames for generation Z (1997-present) “Zoomers iGeneration, Gen Tech, Gen Wii, Net Gen, Digital Natives, Plurals”