All of the following are approaches to helping ecosystems recover except

a. Rehabilitation
b. secondary succession
c. Replacement
d. creating artificial ecosystems
e. Restoration


B

Environmental & Atmospheric Sciences

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Which of the following is located between the NE and SE trade winds?

A. subtropic high. B. equatorial low. C. polar front. D. polar easterlies.

Environmental & Atmospheric Sciences

The overall regional life expectancy in sub-Saharan Africa is

A) 83 years B) 57 years C) 47 years D) 77 years E) 67 years

Environmental & Atmospheric Sciences

What Zooplankton is considered a keystone species?

A) Ctenophores B) Meroplankton C) Pteropods D) Krill

Environmental & Atmospheric Sciences

The earth's earliest atmosphere was probably composed mainly of ________, which has/have since largely dissipated into space.

A. Oxygen B. Water C. Hydrogen and helium D. Carbon dioxide and methane E. Nitrogen and sulfur

Environmental & Atmospheric Sciences