The release of which one of the following into ponds and wells helps in controlling the mosquitoes?
- (a)Crab
- (b)Dogfish
- (c)Gambusia fish
- (d)Snail
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Official answer(c) Gambusia fish
Other questions on Sustainable Agriculture & Forestry
Which one of the following is the first Plan Vivo certified Reducing Emissions from Deforestation and Forest Degradation (REDD+) project in India ?
- (a)Uttarakhand REDD+ project
- (b)ICFRE-ICIMOD Transboundary REDD+ project in North-Eastern Himalayas
- (c)Khasi Hills Community REDD+ project
- (d)Sikkim Mamley Kamrang Community REDD+ project
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Official answer(c) Khasi Hills Community REDD+ project
“System of Rice Intensification” of cultivation, in which alternate wetting and drying of rice fields is practised, results in : 1. Reduced seed requirement 2. Reduced methane production 3. Reduced electricity consumption Select the correct answer using the code given below :
- (a)1 and 2 only
- (b)2 and 3 only
- (c)1 and 3 only
- (d)1, 2 and 3
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Official answer(d) 1, 2 and 3
Which of the following are nitrogen-fixing plants ? 1. Alfalfa 2. Amaranth 3. Chickpea 4. Clover 5. Purslane (Kulfa) 6. Spinach Select the correct answer using the code given below :
- (a)1, 3 and 4 only
- (b)1, 3, 5 and 6 only
- (c)2, 4, 5 and 6 only
- (d)1, 2, 4, 5 and 6
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Official answer(a) 1, 3 and 4 only
The “Miyawaki method” is well known for the :
- (a)Promotion of commercial farming in arid and semi-arid areas
- (b)Development of gardens using genetically modified flora
- (c)Creation of mini forests in urban areas
- (d)Harvesting wind energy on coastal areas and on sea surfaces
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Official answer(c) Creation of mini forests in urban areas
Which one of the following is used in preparing a natural mosquito repellent?
- (a)Congress grass
- (b)Elephant grass
- (c)Lemongrass
- (d)Nut grass
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Official answer(c) Lemongrass
How is permaculture farming different from conventional chemical farming? 1. Permaculture farming discourages monocultural practices but in conventional chemical farming, monoculture practices are predominant. 2. Conventional chemical farming can cause increase in soil salinity but the occurrence of such phenomenon is not observed in permaculture farming. 3. Conventional chemical farming is easily possible in semi-arid regions but permaculture farming is not so easily possible in such regions. 4. Practice of mulching is very important in permaculture farming but not necessarily so in conventional chemical farming. Select the correct answer using the code given below.
- (a)1 and 3
- (b)1, 2 and 4
- (c)4 only
- (d)2 and 3
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Official answer(b) 1, 2 and 4