Match each process to the sphere at most directly involves

Answer and Explanation:

The correct matching would be

(2) Atmosphere- (A) an increase in the level of CO₂ around the earth leads to climate change  

(1) Hydrosphere- (B) the depth of an ocean increase as glaciers melt  

(3) Geosphere- (C) the height of a mountain increases by 0.4 centimeters each year  

(4) Biosphere- (D) infection with a fungal disease decreases the size of a bat colony  

The atmosphere, hydrosphere, geosphere, and biosphere are the four major spheres or systems of the earth.

The atmosphere refers to the sum total of gases available on the earth. It makes the blanket of gases around the globe. Thus, an increase in carbon dioxide would come under the atmosphere  

Hydrosphere refers to the total amount of water available on the surface of the earth. For example, seas, oceans, rivers, lake, underground water et cetera.

Geo means ground and thus geosphere refers to the total amount of ground, rocks, and minerals present on the earth. Thus, the increase in height of a mountain comes under the geosphere.

Biosphere refers to any space on earth which is occupied by any living organism (animals, plants, birds, microorganisms et cetera)