1. The largest ecosystem of the Earth is
(a) Biosphere
(b) Hydrosphere
(c) Lithosphere
(d) Biome
2. Van Mahotsav is associated with
(a) cutting trees
(b) planting trees
(c) increases in crop
(d) protection of plants
3. Biodegradable wastes can usually be converted into useful substances with the help of
(a) bacteria
(b) nuclear proteins
(c) radioactive substances
(d) viruses
4. Which of the following is biodegradable?
(a) Paper
(b) DDT
(c) Aluminium
(d) Plastic
5. Gas released during Bhopal tragedy was
(a) Sodium isothiocyanate
(b) Ethyl isothiocyanate
(c) Potassium isothiocyanate
(d) Methyl isothiocyanate
6. REDD Plus Programme is concerned with which of the following?
(a) Nuclear Non-proliferation Treaty (NPT)
(b) Convention on Biological Diversity (CBD)
(c) Millennium Development Goals (MDG)
(d) Earth Summit
7. Ozone holes are more pronounced at the
(a) equator
(b) tropic of cancer
(c) tropic of capricorn
(d) poles
8. Which one of the following is not biodegradable?
(a) Woollen mat
(b) Silver foil
(c) Leather bag
(d) Jute basket
9. Which one of the following is responsible for blue baby syndrome?
(a) Fluoride
(b) Nitrate
(c) Arsenic
(d) Lead
10. Which one among the following group of items contain only biodegradable items?
(a) Wood, grass, plastic
(b) Wood, grass, leather
(c) Fruit peels, lime juice, China clay cup
(d) Lime juice, grass, polystyrene cup
Note : Answers will be updated soon....
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