Concept:Temperature of the environment generally decreases as altitude increases.
Explanation:Altitude is the vertical height of a place above sea level.
As altitude increases, air becomes thinner and holds less heat.
For this reason, temperature falls by about
6.5∘C for every
1000 metres climbed in the lower atmosphere.
Erosion refers to the wearing away of the Earth's surface by agents such as water and wind.
Mass wasting is the downward movement of soil and rock under the influence of gravity.
Longitude is the angular distance of a place east or west of the Prime Meridian.
These other options do not directly account for the normal change in air temperature with height.
Thus, altitude is the factor with which environmental temperature changes.
Answer:B. altitude