Answer: to explain what keystone species are important in each ecosystem
Explanation:
The overall theme of the article is to explain what keystone species are important in each ecosystem.
Keystone species is referred to as an organism that defines the ecosystem as a whole. They help define the habitat's biodiversity.
It should be noted that despite the fact that every living organisms depends on each other, some species are more vital than others and when they're removed, there will be a drastic change in the habitat.
What do you mean by then?
Answer: Option (a) is the correct answer.
Explanation:
A physical change is a change in which there occurs no change in chemical composition of a substance.
Whereas when chemical composition of a substance changes then it is called chemical change.
For example, cutting a substance into four pieces is a physical change as there occurs no change in chemical composition of the substance.
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Answer:</h3><h2>
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Glaciers and Ice Caps.</h2><h3>
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Explanation:</h3><h3>
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Most of the fresh water on Earth is from the glacier and ice caps, it's clean water stored for many years, fresh and drinkable for us to have for a long period of time.
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Further Explanation:</h3><h3>
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Freshwater means water that is good to drink, it's not dirty, salty, or touched by any dirtiness. This includes oceans and seas, they have salty water, and have germs, bacteria, and living organisms.
That means, ice caps and glaciers are not part of the ocean, which means it's real freshwater.
Example: When you go to Antarctica, you've found a ice cap with a small lake of water, since that water isn't salty nor dirty, it's safe to drink.
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