You work for the city planning agency in Houston and successfully pass ordinances designed to double population density. Based on the graph, predict the approximate change in carbon emissions.

A) 10% decline
B) 25% decline
C) 50% decline
D) 75% decline


Ans: C) 50% decline

Environmental & Atmospheric Sciences

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A push on a 1-kg brick accelerates the brick. Neglecting friction, to equally accelerate a 10-kg brick, one would have to push with

A) just as much force. B) 10 times as much force. C) 100 times as much force. D) one-tenth the amount of force. E) none of the above

Environmental & Atmospheric Sciences

Which of the following would be considered applied research?

A) determining the lightest and strongest metal to be used for an airplane wing B) testing the strength of a piece of metal C) determining the melting temperature of a metal D) examining how susceptible a metal is to bending E) determining how readily a metal corrodes in a wet environment

Environmental & Atmospheric Sciences

The molecular weight of ethylene glycol is 62.0 amu. What is the mass of one molecule of ethylene glycol?

A) 9.70 x 10^21 g B) 62.0 g C) 0.0161 g D) 1.03 x 10^-22 g

Environmental & Atmospheric Sciences

Why are kelp forests such an important ecosystem on the North Pacific coast of North America?

a) it is highly productive in primary productivity and a habitat for many marine organisms b) kelp is used as a biofuel c) kelps shield organisms from the UV rays of the sun d) kelps enable sea urchins to thrive e) the kelp forest provides a safe surf zone

Environmental & Atmospheric Sciences