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andriy [413]
3 years ago
5

Arsenic contamination of groundwater in the U.S., China, and many other countries comes from: A. agricultural runoff. B. municip

al wastewater. C. natural sources. D. nuclear power plants. E. septic systems.
Geography
1 answer:
galina1969 [7]3 years ago
3 0

Answer:

D. nuclear power plants.

Explanation:

  • Arsenic pollution of groundwater is a form of groundwater contamination, which naturally occurs in high concentrations of arsenic in deep groundwater.
  • Nuclear power plants provide 17% of the world’s electricity. There are over 400 nuclear power plants worldwide
  • And the production of solar elements and cumulative use gallium, arsenic, selenium and other elements, which become heavy pollutants as they disposal in ground.
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Answer: Permafrost-carbon feedback

Explanation: Permafrost is the later of the earth surface that are frozen, It Thawing is a major cause of Global warming, Permafrost contain many Green House gases such as Methane and other hydrocarbons as the Permafrosts Thaw,unlocking of the carbon deposits on the earth takes placeas all this hydrocarbons released causes flooding,high temperatures and excessive decomposition of organic matters.

7 0
3 years ago
ABC is similar to DEF. The ratio of the perimeter of abc to the perimeter of def is 1:10. The longest side of def measures 40 un
MatroZZZ [7]

The length of the longest side of this triangle is given as 4 units.

<h3>How to solve for the longest side of the triangle.</h3>

The scale factor that we have in this question is 1/10

The longest side of the triangle can be gotten from the

scale factor x side

= 1/10 x 40

= 4 units

Hence the longest side of the triangle is 4 units.

Read more on the triangle here:

brainly.com/question/1465072

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5 0
2 years ago
At the end of the Paleozoic Era,there was a mass extinction that wiped out over 90% of all species. What was the possible cause
rodikova [14]
A possible cause was a meteorite hit the earth. it caused many organisms to become extinct because it blocked out the Sun so plants couldn't grow and herbivores couldn't eat the plants and carnivores couldn't eat herbivores.
5 0
3 years ago
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Why was learning to predict the annual floods of the Nile river important to the Egyptians
Olenka [21]

It was important, because many fields were on the flood plains of the Nile. It was also important because the flooding of the Nile brought mineral and nutrient rich soil, which made the farming land more fertile. Without the knowledge of the flooding of the Nile, Egyptian agriculture might have been destroyed. It is still important to farmers along the edge of the Nile to this day.

5 0
3 years ago
8v-24= -40 what’s the reason
Mamont248 [21]

Answer:

v=-2

Explanation:

8v-24=-40

+24       +24           add 24 to both sides

8v=-16

/8 .   /8                   divide both sides by 8

v=-2  

5 0
3 years ago
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