The euphotic zone in the open ocean extends from the surface down to approximately ________

A) 20 meters
B) 100 meters
C) one kilometer
D) one to two kilometers
E) two to three kilometers


B

Environmental & Atmospheric Sciences

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Straight-line momentum—called ____________________—is the product of the mass of the object times its velocity

Fill in the blank with correct word.

Environmental & Atmospheric Sciences

Which of the following statements about catalysts is NOT true?

A. A catalyst alters the rate of a chemical reaction. B. A catalyst can be consumed in a reaction as long as it is regenerated. C. A catalyst does not change the energy of the reactants or the products. D. A catalyst can be used to speed up slow reactions. E. All of the above are true.

Environmental & Atmospheric Sciences

Stream velocity is often measured for different subsections of a stream cross section using a moveable current meter

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Groundwater is a nonrenewable resource because

A. groundwater is the rarest form of freshwater. B. the amount of all water in the hydrosphere is decreasing. C. it takes thousands of years to recharge aquifers. D. groundwater cannot be filtered and reused.

Environmental & Atmospheric Sciences