The rate of formation of new organic matter by rabbit in a grassland, is called
Options
(a) net productivity (b) secondary productivity (c) net primary productivity (d) gross primary productivity
Correct Answer:
secondary […]
Which one of following pairs of gases are the major cause of Greenhouse effect
Options
(a) CO2 and O3 (b) CO2 and CO (c) CFCs and SO2 (d) CO2 and N2O
Correct Answer: […]
Which one of the following is one of the characteristics of a biological community?
Options
(a) Stratification (b) Natality (c) Mortality (d) Sex ratio
Correct Answer:
Stratification
Explanation:
No explanation available. Be the […]
The biomass available for consumption by the herbivores and the decomposers is called:
Options
(a) net primary productivity (b) secondary productivity (c) standing crop (d) gross primary productivity
Correct Answer:
net primary productivity
Explanation: […]
Which of the following plant species you would select for the production of bioethanol ?
Options
(a) Zea mays (b) Pongamia (c) Jatropha (d) Brassica
Correct Answer:
Jatropha
Explanation:
No explanation available. Be […]
Identify the possible link “A” in the following food chain : Plant insect – frog “A” Eagle
Options
(a) Rabbit (b) WoIf (c) Cobra (d) Parrot
Correct Answer:
Cobra
Explanation:
Food chain starts […]
Which of the following is mainly produced by the activity of anaerobic bacteria on sewage?
Options
(a) Laughing gas (b) Propane (c) Mustard gas (d) Marsh gas
Correct Answer:
Marsh gas
Explanation:
No […]
DDT residues are rapidly passed through food chain causing biomagnification because DDT is
Options
(a) moderately toxic (b) non-toxic to aquatic animals (c) water soluble (d) lipo soluble
Correct Answer:
lipo soluble
Explanation: […]
Which one of the following ecosystem types has the highest annual net primary productivity?
Options
(a) tropical deciduous forest (b) temperate evergreen forest (c) temperate deciduous forest (d) tropical rain forest
Correct Answer: […]
In a coal fired power plant electrostatic precipitators are installed to control emission of
Options
(a) NO2 (b) SPM (c) CO (d) SO2
Correct Answer:
SPM
Explanation:
In recent years, the increases in toxic […]
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