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It looks like a soup ladel. The reason why it is called big is to distinguish it from the more small one. Its real name is ursa major.
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Scientist that studies languages are called linguistics.</span>
Answer
Hi,
The correct answer option is {A}
Explanation
River Yangtze of China has cities lined up along its banks.This means that waste water and other solid waste matter from the cities could be deposited into the river causing water pollution.The industries along the river might release warm water and untreated waste water including harmful chemicals into the river increasing the pollution.In such a case, aquatic life will be at risk and some rare species of fish could die and completely become extinct.
Hope this Helps!
Answer: Keystone species:
2. play an unusually important role in determining the species composition in a habitat.
Explanation: This are either animals or plants that play a unique role in the ecosystem. If they are removed, there would be an imbalance in the way the ecosystem would be.
