Need answer what happens at a convergent boundary and what types of landforms are the result of this activity?

Here is your answer :)

There are three major types of plate boundaries. If two tectonic plates collide, they form a convergent plate boundary. Usually, one of the converging plates will move beneath the other, which is known as subduction. Deep trenches are often formed where tectonic plates are being subducted and earthquakes are common.

c, liquids evaporate, creating a gas