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Which international treaty was signed in...

Which international treaty was signed in 1987 to gradually eliminate production and consumption of ozone depleting substances?

A

Montreal protocol

B

Kyoto protocol

C

CDM project

D

Vienna convention

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SARAS PUBLICATION-APPLICATION OF BIOTECHNOLOGY-EXERCISE
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  14. What are stem cells? Explain their role in the field of medicine.

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  17. Give some example for transgenic animals.

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