German scientist alfred wegener is best known for what hypothesis

Explanation:

Alfred Lothar Wegener (1880-1930) was a German meteorologist and geophysicist who completed the first hypothesis about Continental Drift. He explained that the continents had onced formed a single mass, a single "continent" and then all began to break apart, until reach their presents positions.

So, according to Wegener's hypothesis, all the land on Earth was part of a single and unique mass, which was separated with the years.

Therefore, Alfred Wegener was best known for the Continental Drift Hypothesis.

it takes about 30 days for it to break down