According to the scientific community of Alfred wegeners day what was the flaw in his theory of continental drift?

A. He could not explain the present day movements of the earths plates

B. He could not explain the speed at which the plates were moving

C. He could not explain the force that could move the earths plates

D. He could not explain where were the plates would be heading in the furture

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !