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nadezda [96]
3 years ago
5

True or false: All of the rivers in the United States are closely monitored For pollution levels

Physics
1 answer:
Nutka1998 [239]3 years ago
3 0

All of the rivers in the United States are not monitored closely for pollution levels.

The statement in the question is False

<h3><u>Explanation:</u></h3>

Not all rivers in the United States are closely monitored for their pollution levels. There are volunteers who take responsibility of checking water bodies such as lakes, rivers, streams etc. They take the next step required after finding a water body contaminated.

But to say that all the rivers receive the same amount of attention and action is incorrect. To ensure that all the rivers are clean and pollution free, it would require a lot of man power in the said department which would collect the water samples from all these rivers and send it to labs for checking the pollution level of the particular river. It can be said that the rivers which are situated beside an industrial site, close to a town, will be the priority for checking pollution levels as it would directly cause harm to a small set of population if the toxicity is at an increased level.

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Answer:

B.convection currents in the mantle

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Assume that the polymer material has a constant refractive index of 1.5. For light of 600nm wavelength at normal incidence, what
yaroslaw [1]

Answer:

Minimum thickness will be 100 nm

Explanation:

We have given refractive index is n = 1.5

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t=\frac{\lambda }{4n} , here t is thickness, \lambda is wavelength and n is refractive index

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8 0
3 years ago
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neonofarm [45]

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3 years ago
Need Help with this physics question, just a written response
Nadusha1986 [10]

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Inga [223]
<h2>Answer</h2>

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