Had you find any ethical issue /dilemma in the issue

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

17 points! ! (explain your answer)

Which event was one of the greatest factors that led to massive emigration from ireland to the united states in the mid-1800s? a) world war i b) the civil war c) the irish potato famine d) colonization of the new world plz fastest and right answer gets 94 !