Nilgiri and ____ are both Biosphere Reserves.

Wite the name of two santuaries of West Bengal

Write one symptom of each of two diseases which might be caused if suspended particulate matter enters into the respiratory tract through inspiration. Construct the sequence of events when agricultural runoff is drained into water bodies. [2+3=5] OR Poaching is one of the main reasons behind the depletion of biodiversity-Prepare a list of any three such endangered wild animals resulting from it. Show the various methods of conservation of biodiversity with the help of a chart. [3+2=5]

Which one of the following is an incorrect food chain? (a) Grass → Rabbit → Snake → Hawk (b) Grass → Grasshopper → Frog → Snake (c) Grass → Cow → Man → Tiger (d) Grass → Insect → Rat → Snake

The smallest unit of an ecosystem containing both biotic and abiotic factors is— (a) A green leaf (b) A flowering branch (c) An organ of a plant (d) A pond

Liquid Nitrogen and -196℃ temperature are used in Cryopreservation.

Which biological hotspots include Mizoram and Nicobar Islands respectively? (a) Eastern Himalayas, Western Ghats and Sri Lanka (b) Sundaland, Indo-Burma (c) Indo-Burma, Sundaland (d) Sundaland, Eastern Himalayas

Decide which of the following pair of causes of depletion and victimised species is correct regarding the depletion of biodiversity - (a) Introduction of exotic species → One-horned Rhinoceros (b) Pollution → Royal Bengal Tiger (c) Global warming and climatic change → Polar Bear (d) Hunting and Poaching → Vulture

One of the efforts for the conservation of Red Panda is captive breeding

What is the main role of JFM?

The economic purpose of poaching is animal’s _____

Write the names of two national parks of West Bengal.