If the earth axis is not tilted what is the new climate change in the western hemisphere

If earth did not tilt and orbited in an upright position around the sun, there would be minor variations in temperatures and precipitation throughout each year as Earth moves slightly closer and farther away from the sun. Basically, we would not have any seasons.

The answer is 1-plate movement along fault lines

2pi more meters because you find the circumference which is 6pi and 4pi and subtract it and you get 2pi