Which is the following helps to control cultural eutrophication?
A. adding nitrates to balance the excess phosphate
B. adding aquatic weeds to the water body to absorb excess oxygen
C. increasing fertilizer use
D. pumping remaining oxygen out of the reservoir
E. limiting or banning phosphates in detergents
Answer: E
You might also like to view...
In a food chain, biomagnification is the result of
A) bioaccumulation up to higher trophic levels. B) bioaccumulation down to lower trophic levels. C) higher levels of toxins than in the organisms living in that region. D) rapid elimination of toxic wastes from the body.
Adding humus in a garden will most likely
A) decrease the nutrients of the soil and the water-holding capacity. B) increase the nutrients of the soil and the water-holding capacity. C) increase the nutrients of the soil but decrease the water-holding capacity. D) decrease the nutrients of the soil but increase the water-holding capacity.
Two unknown minerals are placed before you for identification. You decide to test each mineral's hardness. Mineral A will scratch a piece of glass. Mineral B will not. Which mineral is harder? How do they compare to the specific hardness of the glass?
What will be an ideal response?
Remote sensing is used quite heavily by large farmers, as they use this technology to help them determine when and where to water and fertilize their fields
Indicate whether the statement is true or false