A ____________________ is an element or inorganic compound that occurs naturally in the earth's crust.

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


Right answer summary: mineral

Environmental & Atmospheric Sciences

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Why do industries tend to produce so much waste even though it is not the most efficient way to do business?

A. It is more profitable to be efficient with waste. B. Industry ecologists do not recommend streamlining industrial waste. C. Most of industry is run by disorganized people. D. In most cases, there is no financial incentive for becoming efficient.

Environmental & Atmospheric Sciences

What processes were occurring when this photograph was taken or at some time in the recent past?

A. ejection of the outer envelope of gas and plasma B. nuclear fusion and nucleosynthesis of helium, convection in the interior, emission of electromagnetic radiation and heat C. nuclear fusion, gravitational attraction of material, and movement and rotation of a galaxy D. attraction of mass by gravity, formation of stars via nuclear fusion, and emission of electromagnetic radiation

Environmental & Atmospheric Sciences

The Earth's orbit around the Sun is almost circular. Therefore, Earth receives about the same amount of year-round

A. light and precipitation. B. heat and light. C. heat and precipitation.

Environmental & Atmospheric Sciences

How might the burning of coal have had opposing effects on climate during the 20th century?

What will be an ideal response?

Environmental & Atmospheric Sciences