Environmental Science - Study Mode

[#446] The intermediate developmental stages in the ecological succession is called
Correct Answer

(A) sere

Explanation

Solution: A seral community (or sere) is an intermediate stage found in ecological succession in an ecosystem advancing towards its climax community.

[#447] The final stable community in an ecological succession is called the
Correct Answer

(C) climax community

Explanation

Solution: The final or stable community in a sere is the climax community or climatic vegetation. It is self-perpetuating and in equilibrium with the physical habitat.

[#448] Typically, water vapour occupies about what percentage of the air's volume near the earth's surface?
Correct Answer

(D) Less than 4 percent

Explanation

Solution: Typically, water vapour occupies about less than 4 percent of the air's volume near the earth's surface.

[#449] Heavy dust can cause
Correct Answer

(C) closure of stomata

Explanation

Solution: Heavy dust can cause closure of stomata.

[#450] Thermal belts are:
Correct Answer

(C) Warmer hillsides that are less likely to experience freezing conditions

Explanation

Solution: The thermal belt refers to a mountainside zone where frost or freezing temperatures are less likely to occur than they are at either higher or lower elevations.