It is reponsible for maintaining the earth as a green – house with temperature conditions suitable for life ?
A) Oxygen
B) CO2
C) Hydrogen
D) Nitrogen
1 Answers
Write suitable conditions of concentration, temperature and pressure used during manufacture of ammonia by Haber process.
i. Concentration : Addition of H2 or N2 both favours forward reaction. This increases the yield of NH3. ii. Temperature : The formation NH3 is exothermic. Hence, Low temperature should favour the formation of NH3. However, At...
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Which of the following is not a green house gas? A) O2
correct option is A) O2
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Example of the green house gas
Correct option is C) Methane
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Kyoto protocal aims to bring down the release of Green House Gases to less than
Kyoto protocal aims to bring down the release of Green House Gases to less than 5.2%
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एक छोटा पौधा घर (green house) संपूर्ण रूप से शीशे की पट्टियों से (आधार भी सम्मिलित है) घर के अंदर ही बनाया गया है और शीशे की पट्टियों को टेप द्वारा चि
Correct Answer - (i) कांच का `4250 cm^(2)` (ii) फीता का 320 cm [सभी कोरों का योगफल परिकलित कीजिए (12 कोरों में 4 लम्बाइयाँ, 4 चौड़ाइयाँ और 4 उँचाइयाँ है)]
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If R is the radius of the Earth and g is the acceleration due to gravity on the Earth’s surface, the mean density of the Earth is
Correct option is: (D) \(\frac{3g}{4\pi RG}\)
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Which important green house gas other than methane is being produced from the agricultural fields ?
Correct option would be (C) Nitrous (Oxide) Nitrous oxide is produced by combustion of fossil fuels, livestock wastes, breakdown of nitrogenous fertilizers in soil, nitrate contaminated water, nylon production and other...
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In the choice box experiment the cockroach prefers …………………. conditions. i) Dark conditions ii) Light conditions
Correct option is B) i and iv
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Excessive amount of carbon dioxide and other green house gases has been emitted to the environment due to
D) Burning of fossil fuels, deforestation, industrialization
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1. A cell is the smallest unit of life. 2. Nerve cell is the longest cell. 3. Prokaryotes were the first form of life on earth
1. True 2. True 3. True 4. True 5. True
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