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velikii [3]
3 years ago
15

2a) Name two elements Found in waler.

Chemistry
1 answer:
OverLord2011 [107]3 years ago
6 0

Answer:

Hydrogen and Oxygen

Pureified water has been filtered or processed to remove impurities like chemicals and other contaminants, while tap water is not and it is composed of minerals that may not be seen in purified water.

Chemicals are the most common type of water contaminants. They affect both surface and underground water bodies. Industries and farming activities are the leading cause.

Alcohol: Probable human mrcinogen

Arsenic: Skin hyperpigmentalion: oxidative stress;

peripheral neuropathy; bladden skin,

liver, lung, and lymphatic cancer

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The _______________________ regulates water quality, air pollution, and solid waste to protect Americans from significant risks
Dmitry_Shevchenko [17]

Answer:

EPA

Explanation:

In the United States of America, the agency which was established by US Congress and saddled with the responsibility of overseeing all aspects of pollution, environmental clean up, pesticide use, contamination, and hazardous waste spills is the Environmental Protection Agency (EPA). Also, EPA research solutions, policy development, and enforcement of regulations through the resource Conservation and Recovery Act.

In conclusion, the Environmental Protection Agency (EPA) regulates water quality, air pollution, and solid waste to protect Americans from significant risks to human health and the environment.

6 0
3 years ago
Which statement describes a chemical property of
wel

everything describes physical traits ect. and 3 explains reactions with a different substance so 3

4 0
3 years ago
Except for the noble gases, nonmetals tend to have high electron affinities. What properties of nonmetals do you think are the r
kondor19780726 [428]

Answer:

Nonmetals are further to the right on the periodic table, and have high ionization energies and high electron affinities, so they gain electrons relatively easily, and lose them with difficulty.

Explanation:

They also have a larger number of valence electrons, and are already close to having a complete octet of eight electrons.

6 0
3 years ago
Read 2 more answers
In your own words, explain why the Linnaean system has changed over time pls help
sergiy2304 [10]

Classification systems are mental models that we create to make sorting things simpler and more efficient. We make compromises to emphasize certain details and hide others based on their perceived relevance to achieving the outcomes we seek. Even if the original model was nearly perfect, you should expect the inputs provided and outcomes desired to change as time goes by.

In time, we usually find that we have over-simplified by ignoring important details. Mental models such as classification systems should evolve over time. This enables them to more accurately reflect reality and lead to the outcomes we seek.

You can only find the details you seek by observing the right layer of abstraction.

8 0
3 years ago
In 1976, what happened at Big Thompson Canyon in Colorado? *
ss7ja [257]

Answer:

Flash Flood

Explanation:

On July 31, 1976, during the celebration of Colorado's centennial, the Big Thompson Canyon was the site of a devastating flash flood that swept down the steep and narrow canyon, claiming the lives of 143 people, 5 of whom were never found.

3 0
3 years ago
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