What variable will determine if light passes through diamond, but not through graphite?

A) the amount of protons present
B) the arrangement of the electrons
C) the arrangement of the nuclei
D) the color of the different bond types


Answer: B

Environmental & Atmospheric Sciences

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The primary motivation to develop the new renewable energy sources comes from ________

A) those who believe human health is impacted by smog and pollution B) those who believe fossil fuel dependence is suicide because it makes us vulnerable to the Middle East C) those who believe conservation is important D) concerns that oxygen production by trees is endangered by fossil fuel use E) concerns over diminishing fossil fuel supplies and negative environmental impacts of fossil fuel use

Environmental & Atmospheric Sciences

A country's infant mortality rate is a good indicator of the state of its health care system

Indicate whether this statement is true or false.

Environmental & Atmospheric Sciences

What happens to the land surface when large ice sheets melt away?

A. The land flexes upward due to isostatic rebound. B. The land surface remains unchanged but seems lower because of the loss of ice. C. The land rises because the rocks are warmer without the ice. D. It subsides because there is less ice on top.

Environmental & Atmospheric Sciences

A situation where a system acquires a new stable set of conditions significantly different from the

original ones is an example of which type of feedback? a. positive b. negative c. run-away d. formative e. cumulative

Environmental & Atmospheric Sciences