The ratio of density of a mineral to that of freshwater is called the

A. hardness.
B. crystal shape.
C. cleavage.
D. specific gravity.


Answer: D

Environmental & Atmospheric Sciences

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The federal program designed to attack the problem of poverty in Southern Appalachia in 1933 is the ______________________.

Fill in the blank(s) with the appropriate word(s).

Environmental & Atmospheric Sciences

A baby born today in sub-Saharan Africa can expect to live on average to age 57. What are the two main factors that influence this relatively short lifespan expectation?

A) nutrition, medical services B) nutrition, education C) medical services, stress levels D) medical services, industrial accidents E) environmental toxicity, nutrition

Environmental & Atmospheric Sciences

What organism is visible in this image?

A) Amphibian B) Brachiopod C) Crinoid D) Trilobite

Environmental & Atmospheric Sciences

When you comb your hair and electrons are rubbed onto the comb, your hair becomes

A. positively charged. B. ionized. C. negatively charged. D. none of the above

Environmental & Atmospheric Sciences