Biology : –
OUR ENVIRONMENT & NATURAL RESOURCES
1.Food chain ends with Carnivores
2- Every food chain always starts with Producers.
3-Expand BHC – Benzene hexachloride
4-Producers are occurred in a ecological pyramid is at the base.
5-Sunlight is vital role in absorption of solar energy .
6-The energy in the ecosystem flows in the form of foodchain.
7-Ecological pyramids were proposed by Charles Elton.
8-The process of entering pollutents in a food chain is called Bioaccumulation.
9-Expand DDT – Dichloro diphenyl trichloro ethane
10-The trophic level of an ecosystem by taking the shape of pyramid is called Ecological pyramid
11-Exapand ICRISAT -International crop research institute for semi arid tropics
12-0.01% of fresh water is available as surface water .
13 Watershed is the alternative method to prevemt ground water depletion
14-Any type of plant or animal material can be converted in to energy is called Biomas.
15-Give an example for abiotic factor- Air and water
16-Jatropa plaants are used to production for bio diesel .
17-Cultivation of paddy is suitable for Delta areas.
18-Example for non renewable resource is petrol.
19-Biodiversity is an important for more than just food and for life also.
20-The biomass in each trophic level is always less than the trophic level below .
21-0.7-0.8% of fresh water in ground and soil moisture .
22- The process of growing the fishes and prawns is called Acquaculture
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