Hard water is caused by the presence of:

a. calcium and sodium
b. calcium and magnesium
c. sodium and magnesium
d. sodium and sulfate


b

Environmental & Atmospheric Sciences

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Explain how various leaders of the Near Abroad have dealt with Russia since the fall of the Soviet Union

What will be an ideal response?

Environmental & Atmospheric Sciences

The latitude at which the sun is directly overhead is known as the sun's declination

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

If the axial rotation of Earth slowed, the day-to-night temperature variation on Earth's surface would decrease.

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

Environmental & Atmospheric Sciences

Moving the Cape Hatteras lighthouse from its shore location inland is an example of

A. hard structural stabilization. B. a non-structural strategy. C. soft structural stabilization. D. increasing wave base.

Environmental & Atmospheric Sciences