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Mazyrski [523]
3 years ago
15

How do air quality scientists ensure the air is cleaned? What steps do they take?

Physics
1 answer:
bulgar [2K]3 years ago
3 0
Air sample of places around the world compared to clean air
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Ede4ka [16]

Answer:

9758 how many significant figures

3 0
2 years ago
Elements are arranged in the periodic table based on various patterns. For example, the element magnesium (Mg) A. has a higher a
Sati [7]

The right answer is A just did the question.


7 0
3 years ago
Which countries that had sea ice along their coasts in September 1986 were bordered by open water in September 2017?
mrs_skeptik [129]

Answer:

Norway, Sweden, Finland and Iceland

Explanation:

Sea ice is a frozen seawater that floats on the ocean surface. It is formed between the Antarctic and Arctic hemisphere. It disappears in summer but not completely. The countries that experienced sea ice in 1986 were eight (8) in number but the countries bordered by open water were in September 2017 were Norway, Iceland, Finland and Russia.

5 0
3 years ago
Anyone know the answer to number 4…..please help me ASAP!
Damm [24]

Answer:

All planets have an elliptical orbit

all planets have roughly the same SHAPE of orbit

6 0
3 years ago
Read 2 more answers
During a particular time interval, the displacement of an object is equal to zero. Must the distance traveled by this object als
Gnom [1K]

Answer: No, we can have a displacement equal to 0 while the distance traveled is different than zero.

Explanation:

Ok, let's write the definitions:

Displacement: The displacement is equal to the difference between the final position and the initial position.

Distance traveled: Total distance that you moved.

So, for example, if at t = 0s, you are in your house, then you go to the store, and then you return to your house, we have:

The displacement is equal to zero, because the initial position is your house and the final position is also your house, so the displacement is zero.

But the distance traveled is not zero, because you went from you traveled the distance from your house to the store two times.

So no, we can have a displacement equal to zero, but a distance traveled different than zero.

3 0
3 years ago
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