Everyday in summer a blizzard occurs over the great plains. explain where and why.

This is a phenomenon in the Great Plains that can be explained by looking at the geographical conditions of this area. First of all, we have to consider that after a certain altitude (12,000 ft), precipitation starts as snow. However, as that snow falls and gets closer to the ground, it melts. This means that it becomes rain when it enters a warm, dry section of air, giving rise to these blizzards.

a, c, & d are correct:

they wanted lands to settle the extra population.

they wanted new markets for english goods.

they wanted to avoid civil war.

a.

congress passed laws allowing for free passage between states.