If concrete is made by mixing cement with gravels and sands, is concrete a rock? Why or why not?

What will be an ideal response?


Answer: Although cement is mixed with aggregate gravels and sands to make concrete, the process itself is a human-made process and therefore the result is not a rock.

Environmental & Atmospheric Sciences

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Two charged particles 1 m apart exert a 2-N force on each other. If the particles are instead 0.25m apart, the force on each particle will be

A. 8.0 N. B. 4.0 N. C. 2.0 N. D. none of the above

Environmental & Atmospheric Sciences

Metamorphic rocks owe their texture mostly to temperature.

Answer the following statement true (T) or false (F)

Environmental & Atmospheric Sciences

Magenta light is a mixture of

A. red and yellow light. B. red and cyan light. C. red and blue light. D. yellow and green light.

Environmental & Atmospheric Sciences

Inversions are detrimental to developing storm systems because:

A) they encourage instability. B) they cap convective development C) they increase entrainment. D) they seriously alter the horizontal moisture profile of the atmosphere.

Environmental & Atmospheric Sciences