How does weathering alter the surface of land? is it d?
a.
the landscape is changed as large rocks form deltas where an ocean meets a river.
b.
the landscape is altered by the creation of new hills or shapes such as a delta at the end of a river's course to the sea.
c.
existing rocks are broken into smaller fragments, freeing the pieces to be moved away.
d.
the shape of a beach or a hill can be changed as smaller particles are moved away.

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 !