What is the ingredient found in topsoil that's necessary for plant growth?

A. surface litter
B. air
C. mineral matter
D. humus


Answer: D

Environmental & Atmospheric Sciences

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Potential energy would best be expressed when

A) pulling or pushing an object. B) atoms moving at 200 km/hr. C) atoms moving at 500 km/hr. D) changing a liquid to a gas.

Environmental & Atmospheric Sciences

Continental crust is not always thicker than oceanic crust

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

On a Hertzprung-Russell Diagram, our Sun is classified as ________

A) an average star B) a yellow giant C) a mediocre star D) a yellow dwarf E) a super star

Environmental & Atmospheric Sciences

A thin layer of unconcentrated surface water flow is called ____________________

Fill in the blank(s) with correct word

Environmental & Atmospheric Sciences