Cold air IS less dense, sinks, holds less vapor
Option c would be the most befitting one.
Answer:
Constituents of Environment
# Physical elements constitute space, landforms, water-bodies, climate, soils, rocks, and minerals. ...
# Biological elements include plants, animals, micro-organisms, and man.
# Cultural elements include economic, social and political conditions which are largely man-made features.
Explanation:
Brainliest please