How do an erupting volcano affect earth's surface?

When a volcano erupts, lava flows down and cools. As it cools, it hardens into new land. The ash that falls onto the ground it can destroy entire ecosystems, but also works as an extremely effective fertilizer.

Explanation:

it deviates because of the date.

explanation:

the international date line is an imaginary zig zag line on the surface of the earth roughly following the 180 degree meridian. crossing the date line causes the date to be changed exactly by one day. crossing the line from east to west , one loses a day . and from west to east, one gains a day.