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GaryK [48]
3 years ago
15

Which of the following activities is most likely to result in nutrient pollution? a. cutting down trees b. pouring motor oil dow

n the drain c. excess fertilizer use d. none of the above Please select the best answer from the choices provided A B C D
Physics
2 answers:
gtnhenbr [62]3 years ago
7 0
Excess fertilizer use results in nutrient pollution by effecting the nutrition values of the plants we eat.

Cutting down trees more likely to result in air pollution by an increase in greenhouse gases.

Pouring oil in drain creates water pollution which is not a nutrient source.
Talja [164]3 years ago
7 0

The correct answer is:

c. excess fertilizer use  

Explanation:

Nutrient pollution, a form of water pollution, regards to pollution by extreme inputs of nutrients. It is the main cause of eutrophication of surface waters, in which excess nutrients, normally nitrogen or phosphorus, animate algal growth. Causes of nutrient pollution include surface runoff from farm fields and pastures, secretions from septic tanks and feedlots, and eruptions from combustion.

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2 years ago
If at 10m above the ground an object has 50J of Kinetic Energy, with 50J of Potential Energy. How high can the object travel?
steposvetlana [31]

Hi there!

\large\boxed{\text{B) 20 meters}}

We know that:

E_T = U + K

U = Potential Energy (J)

K = Kinetic Energy (J)

E = Total Energy (J)

At 10m, the total amount of energy is equivalent to:

U + K = 50 + 50 = 100 J

To find the highest point the object can travel, K = 0 J and U is at a maximum of 100 J, so:

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We know at 10m U = 50J, so we can solve for mass. Let g = 10 m/s².

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m = 1/2 kg

Now, solve for height given that E = 100 J:

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