What will happen if instead of 20,000 we have only 15,000 species of b – McqOptions

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1.	What will happen if instead of 20,000 we have only 15,000 species of birds on Earth?
A.	No threat to the ecosystem
B.	Little threat to the ecosystem
C.	Serious threat to the safety of the ecosystem
D.	Ecosystem remains unchanged
Answer» D. Ecosystem remains unchanged

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