Answer:
Bc they liked that it happened? Sorry I’m not to good at this stuff but I’m trying to help. Please don’t report me. I’m just trying to help
Explanation:
Answer:
Human activities are changing Earth's natural greenhouse effect. Burning fossil fuels like coal and oil puts more carbon dioxide into our atmosphere. NASA has observed increases in the amount of carbon dioxide and some other greenhouse gases in our atmosphere.
Answer:
Yes. Although D is quite the thought provoking answer, Taxes are made to fit how much money the government is going to need in a year which renders this answer incorrect. B is more of a general answer but is correct. C is another good answer but I think the nest answer would be B.
Two problems sailors faced before the 1400s was they did not have good ways of knowing where they were if they got beyond the sight of land. And 2 the maps were poor and the risk ships were to slow to mak long voyages
