Which three of the following conditions on Earth at the end of the Ice Age made human survival easier? abundance of large animals
decrease in sea levels
extinction of mammoths
increase in vegetation
warmer global climate

increase of vegetation and warmer global climate

Explanation:

this is because humans need a warm climate to survive in, we dont do well in the cold, as well as an increase in vegetation create an abundance in food which leads to the overaell abundance in mammals which humans hunt. for the preceding reasons, humans sttrive in increase of vegetation and a warmer global climate.

answer; /// i believe that the correct answer is (d)the huang he river valley;

yup! you are correct it is b.