Which numbered layer represents the youngest layer?





A) 1

B) 2

C) 3

D) 4


D) 4

Environmental & Atmospheric Sciences

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Which of the following is a fish harvesting method used for harvesting schools of fish in shallow or surface waters, which has caused the death of large numbers of dolphins?

a. longlining b. purse-seine fishing c. trawler fishing d. drift-net fishing e. sport fishing

Environmental & Atmospheric Sciences

If grass stores 1,000 energy units received from the sun, the ecological efficiency of the ecosystem is 10%, and the trophic levels are grass ? cow ? human, how many units of energy does the human receive of the original 1,000 units?

A. 900 B. 200 C. 100 D. 10 E. 1

Environmental & Atmospheric Sciences

Glaciers are a single, solid piece of ice that flows from the Zone of Accumulation to the Zone of Saturation

Indicate whether this statement is true or false.

Environmental & Atmospheric Sciences

The Nature Conservancy, World Wildlife Fund, Greenpeace and the Grameen Bank are examples of non-governmental organizations working toward environmental conservation.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences