In developed countries around ________ percent of workers are engaged directly in farming, compared to around 50 percent in developing countries

A) 2
B) 5
C) 10
D) 15
E) 30


Answer: B

Environmental & Atmospheric Sciences

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Coastal waters often support larger blooms of plankton than open water due to a high nitrate level in runoff

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Which of the following is NOT one of the chapter's three big ideas?

a. There are always limits to population growth in nature. b. Certain interactions among species affects their use of resources and their population sizes. c. The balance of nature theory only. d. The balance of nature theory and the concept of restoration of ecosystems by humans. e. Changes in environmental conditions cause communities and ecosystems to gradually alter their species composition and population sizes.

Environmental & Atmospheric Sciences

This is the amount of water that would be evaporated if it were available

A) Potential evapotranspiration B) Potential evaporation C) Actual Evaporation D) Actual Evapotranspiration E) Desired evaporation

Environmental & Atmospheric Sciences

The name given to the northern supercontinent was

a. Laurasia. d. Gondwana. b. Laurentia. e. northern Pangaea. c. Baltica

Environmental & Atmospheric Sciences