The correct answer is the last option.
The first option (unable to cause climate change) is incorrect because these gases do effect the atmospheric temperatures by increasing them.
The second option is incorrect because while these gases do cause more water vapor to condense, they result in acid rain (not wetter climates).
Answer: about 10 TIMES MORE!!!
Explanation: all you have to do is know the two averages and compare them out ;)
BB x BB = BB no matter what.
So its %100 black.
Answer: No
Explanation: Don't cheat on tests
