Which mineral does not contain abundant potassium?

A) feldspar
B) biotite
C) muscovite
D) calcite


Answer: D

Environmental & Atmospheric Sciences

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The instrument used to measure atmospheric pressureis called a(n)_______________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences

Pencil lead is made of ________.

A. graphite B. galena C. coal D. gypsum E. lead

Environmental & Atmospheric Sciences

What is the main drawback of all-electric cars that do not consume any fossil fuels onboard?

A. They still depend on burning coal to be recharged. B. They increase the emission of ozone depleting chemicals. C. They consume more energy than they save. D. They only work in tropical to temperate climates.

Environmental & Atmospheric Sciences

Although there is technical access to Internet services all over the world, the cost of access is still too high for many poor people. This is known as the ________ and can have significant ramifications for many countries, especially in Africa

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

Environmental & Atmospheric Sciences