Environmental Engineering

331. Lead poisoning

1. reduces O2 carrying capacity of haemoglobin in blood
2. increases O2 carrying capacity of haemoglobin in blood
3. reduces O2 carrying capacity of myoglobin in muscles
4. increases O2 carrying capacity of myoglobin in muscles

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332. MAB program stands for

1. Man and biotechnology
2. Material and biology
3. Man and Biology
4. Man and Biosphere

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333. MAB stands for

1. Man and biosphere
2. Man, antibiotics and bacteria
3. Man and biotic community
4. Mayer, Anderson and Bisby

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334. Man made sources of radiation pollution are:

1. mining
2. explosion of nuclear weapons
3. nuclear fuels and preparation of radioactive isotopes
4. all of these

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335. Many freshwater animals cannot live for long in sea water and vice versa mainly because of the

1. Change in N levels
2. Change in the levels of thermal tolerance
3. Variations in light intensity
4. Osmotic problems
5. Spectral quality of solar radiation

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336. Minamata disease was caused by pollution of water by

1. mercury
2. lead
3. tin
4. methyl iso cyanate

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337. Mobile combustion accounts

1. 10-20% of air pollution
2. 40-50% of air pollution
3. 50-60 % of air pollution
4. 5-10 % of air pollution

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338. Mycorrhiza represents

1. symbiotic association between a fungus and liverworts
2. parasitic association between a fungus and an alga
3. parasitic association between a fungus and roots of plants
4. symbiotic association between a fungus and roots of higher plants .

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339. Noise is measured using sound meter and the unit is

1. hertz
2. decibel
3. joule
4. sound

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340. One greenhouse gas contributes 14% to total global warming and another contributes 6%. These are respectively identified as

1. N2O and CO2
2. CFCs and N2O
3. Methane and CO2
4. Methane and CFCs
5. CFCs and CO2

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