3 years ago

Which of the following describes the greenhouse effect?

Chemistry

1 answer:

forsale [732]3 years ago

5 0

Answer:

Explanation:

Earth's greenhouse gases trap heat in the atmosphere and warm the planet.

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Three hundred years ago, the amount of CO2 flowing into the atmosphere was equal to the amount flowing out of the atmosphere. Th

Marina CMI [18]

Answer:

true

Explanation:

becaus it chang climate

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3 years ago

The graph given below shows the motion of four runners P, Q, R, and S in a 5 km marathon.

wel

Answer:-

As we can see from the graphical data,

The distance covered by all the four runners is the same 5 km.

Among the four athletes, Athlete P covers the distance in under three hours.

It is the minimum time taken among the four athletes.

Thus Athlete P covers the 5 km distance in the minimum amount of time.

We know that speed = $\frac{Distance}{Time}$

Since time taken for P is minimum, his speed is the maximum. P ran the fastest.

Time taken by Q = 4.5 hours.

Speed of Q = $\frac{Distance}{Time taken by Q}$

= $\frac{5km}{4.5hour}$

= 1.1 km/ hr

Time taken by R = 6 hours.

Speed of R = $\frac{Distance}{Time taken by R}$

= $\frac{5km}{6hour}$

= 0.8 km/ hr

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3 years ago

When electrons gain energy, what can they do?

beks73 [17]

B. When electrons gain energy, they have the power to move up to a higher energy level in an atom.

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3 years ago

Convert 4.992×1010 g to each of the following units.<br> B. Mg<br> c. mg<br> D. metric tons

SVETLANKA909090 [29]

I think it is letter D

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3 years ago

Not all of the water falls as rain, snow,or sleet evaporates. What happens to the rest of the water?

Bumek [7]

Hi there! All of the water returns to the atmosphere, it's called evapotranspiration and condenses. And then the water falls back to the Earth's surface and starts the cycle all over again. If you don't know what I mean, it's the Water Cycle.

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3 years ago