What is the most effective method for monitoring the effects of global warming? Monitor the amount of carbon dioxide in the atmosphere.

Monitor the number of miles traveled by people in cars each year.

Monitor the amount of greenhouse gases put out by factories.

Monitor the sea level over set period of time.

D) Monitor the sea level over set period of time.

Since global warming causes land ice to melt, that water goes into the ocean to raise sea levels. This is an effect of global warming.

Choices A through C are things to measure if you want to measure causes of global warming, so we can rule those out.

atomic mass = 39

number of neutrons = 20

number of protons= 19

electronic configuration = 1s2 2s2 2p6 3s2 3p6 4s1

the number of electron in first shell = 2

number of electrons in n=3 shell = 8