Complex I of the electron and H+ transport chain contains a number of clusters made up of a metal and a nonmetal. Which atoms are found in these clusters?

A) iron and nitrogen
B) iron and sulfur
C) magnesium and nitrogen
D) magnesium and sulfur


B

Environmental & Atmospheric Sciences

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Which of the following is not an external cost of driving a domestic car?

a. air pollution and litter b. cost of manufacture c. highway accidents d. health costs e. hazardous wastes produced by car exhaust

Environmental & Atmospheric Sciences

This feature is a(n)



A) sea stack.
B) fringing reef.
C) atoll.
D) sandbar.

Environmental & Atmospheric Sciences

Explain why lack of diversity in food crops might present problems for the world food supply

What will be an ideal response?

Environmental & Atmospheric Sciences

Zinc can be uniformly mixed in differing amounts in copper to an alloy called brass. Brass is an examples of which of the following?

A) compounds B) elements C) homogeneous mixtures D) heterogeneous mixtures

Environmental & Atmospheric Sciences