The darkest zone of the sea is the

a. euphotic zone
b. abyssal zone
c. bathyal zone
d. coastal zone
e. benthic zone


B

Environmental & Atmospheric Sciences

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The refraction of light is due to changes in wave

A. direction. B. speed. C. frequency. D. all of the above

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Which would produce a more highly valued element, adding or removing a proton from the element gold?

What will be an ideal response?

Environmental & Atmospheric Sciences

How are radioactive elements different from stable elements? What will be an ideal response?

Environmental & Atmospheric Sciences

The total amount of living material in an ecosystem is referred to as ____

a. biomass b. a food chain c. mosaic d. a life zone

Environmental & Atmospheric Sciences