Question

which process is primarily responsible for the formation of the himalayan mountain range?
○ convergent plate boundary movement
○ divergent plate boundary movement
○ transform plate boundary movement
○ volcanic activity

the process by which rocks are broken down into smaller pieces through physical processes is called:
○ chemical weathering
○ mechanical weathering
○ deposition
○ erosion

what is the primary factor that determines the characteristics of an air mass?
○ the direction its moving
○ the speed at which it travels
○ the terrain over which it forms
○ the time of year it develops

Explanation:

First Question:

The Himalayan mountain range formed due to the collision of the Indian and Eurasian tectonic plates, which is a convergent plate boundary movement. Divergent boundaries create rifts or new crust, transform boundaries cause lateral sliding, and volcanic activity is not the primary cause for the Himalayas.

Mechanical weathering (also called physical weathering) breaks rocks into smaller pieces through physical processes like freeze - thaw, abrasion, etc. Chemical weathering involves chemical changes, deposition is the laying down of sediments, and erosion is the transport of sediments.

An air mass takes on the characteristics (temperature, humidity) of the area (terrain/region) where it forms. The direction or speed of movement, or the time of year, do not primarily determine its characteristics compared to the source region's terrain/conditions.

Answer:

A. Convergent plate boundary movement

Second Question: