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Margaret [11]
3 years ago
7

Ozone is dangerous to human health only when it is found in the what?

Chemistry
2 answers:
Archy [21]3 years ago
7 0

Answer:

A) Stratosphere

B) trosphere

C)mesosphere

D)thermosphere

Explanation:

D) thermosphere

Irina18 [472]3 years ago
4 0
Only when it is found in the atmosphere, because it will create a hole, letting strong UV rays shine down on earth, heating it up, and causing skin cancer in humans and other animals.
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Answer:

Melting of snow

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Explanation:

Processes that increase the entropy of the universe are those processes that have an increased disorderliness. We should note that there are three principal states of matter which are the liquid, gas and solid. The gaseous state is the most disorderly while the solid is the least disorderly.

Now. We can see that the cooling of a hot cup of coffee is a process that needs or leads to a loss in temperature which obviously decreases disorderliness of the universe.

The melting of snow however is a process that leads to an increase in the disorderliness of the universe. It entails moving from the solid state to the liquid state. It tends to move to a more disordered state indicating an increase in the entropy of the universe.

The evaporation of water from the desk is quite similar to that above. Hence since we are moving from the liquid to the gaseous state via evaporation, we can state that the entropy of the universe has increased since we have moved from a state with a lesser degree of disorderliness to a state that is more disordered I.e from liquid to gaseous state.

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3 years ago
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If the valence shell electrons are same they are categorized under same group.

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