I REALLY NEED HELP How did climate change during the Mesolithic Era impact early peoples?

Sea levels receded, reducing the availability of fish as a food source.
Larger animals died out and smaller animals became the primary food source.
Conditions for growing crops improved, and farming became a reliable source of food.
Food shortages forced people to travel farther in search of animals to hunt.

Climate changes during the Mesolithic included the retreat of the Pleistocene glaciers, a steep rise in sea levels, and the extinction of megafauna (large-bodied animals).  After the climate stabilized, people moved northward into previously glaciated areas and adopted new subsistence methods.

Explanation:

im not sure its either a leader of a group of congresspeople or a person from a congressmans district

sorry im not sure

i would say that the politicial parties from state to state varies.