ICSE 2004 : SCIENCE Paper 3 (Biology) - Question 2 (a) Answer the following.

SCIENCE

Paper 3 (Biology) - 2004

(One Hour and a half)

Question 2
(b) Briefly describe the following terms and then answer as directed after each:

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1.
(i) Antiseptic. Name an antiseptic.

2.
(ii) Biodegradable Pollutants. Name one.

3.
(iii) Ozone hole. When is the International Ozone-Day observed?

4.
(iv) Green House effect. name a phenomenon that is caused due to the green house effect.

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