Which of the following does not cause pollution? (1) Burning of petrol (2) Use of solar energy (3) Burning of rubber (4) All of the above

Which of the following does not cause pollution? (1) Burning of petrol (2) Use of solar energy (3) Burning of rubber (4) All of the above
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(2) Use of solar energy Explanation: Use of solar energy does not cause pollution.
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Pick out the wrong statement. (A) Biological oxygen demand (B.O.D.) value of a sewerage sample is always lower than its chemical oxygen demand (C.O.D.) value (B) Environmental pollution by NOx emission is much higher by four stroke petrol engines as compared to the two stroke engines (C) Temperature in stratosphere rises with increasing altitude (D) The characteristic of a green house body is that it allows the long wavelength incoming solar radiation to come in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere

Description : Pick out the wrong statement. (A) Biological oxygen demand (B.O.D.) value of a sewerage sample is always lower than its chemical oxygen demand (C.O.D.) value (B) Environmental pollution by ... in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere

Last Answer : (D) The characteristic of a green house body is that it allows the long wavelength incoming solar radiation to come in but does not allow the short wavelength infra red radiation to escape out of the earth's atmosphere

In a petrol engine, which of the following gas gets exhausted out without burning and without transformation? a. CO2 b. CO c. O2 d. N2

Description : In a petrol engine, which of the following gas gets exhausted out without burning and without transformation? a. CO2 b. CO c. O2 d. N2

Last Answer : ANSWER d. N2

Which of the following process-es does not increase the amount of carbon dioxide in air? (1) Breathing (2) Photosynthesis (3) Burning of petrol (4) Aerobic decay of vegetation

Description : Which of the following process-es does not increase the amount of carbon dioxide in air? (1) Breathing (2) Photosynthesis (3) Burning of petrol (4) Aerobic decay of vegetation

Last Answer : (2) Photosynthesis Explanation: Plants reduce the CO2, because they use it with photosynthesis. They use it to give oxygen and carbohydrates as the final product. It is for this reason that ... from exposure to the sun's ultraviolet (UV) radiation, especially during the early morning hours.

Why is water not suitable for putting out a petrol fire? (1) The oxygen content of water is isolated by petrol and thus it helps in burning (2) Petrol is too inflammable to be extinguished by water (3) The heat required for combustion of petrol is very low (4) Water, being heavy, slips below petrol which thus remains in contact with air and burns

Description : Why is water not suitable for putting out a petrol fire? (1) The oxygen content of water is isolated by petrol and thus it helps in burning (2) Petrol is too inflammable to be extinguished by ... very low (4) Water, being heavy, slips below petrol which thus remains in contact with air and burns

Last Answer : (4) Water, being heavy, slips below petrol which thus remains in contact with air and burns Explanation: Water is not effective on petrol fire because it has higher density than ... while petrol stays afloat and keeps burning. Petrochemical fires are nearly always extinguished with chemical foam.

Why is water not suitable for putting out a petrol fire? (1) The oxygen content of water is isolated by petrol and thus it helps in burning (2) Petrol is too inflammable to be extinguished by water (3) The heat required for combustion of petrol is very low (4) Water, being heavy, slips below petrol which thus remains in contact with air and burns

Description : Why is water not suitable for putting out a petrol fire? (1) The oxygen content of water is isolated by petrol and thus it helps in burning (2) Petrol is too inflammable to be extinguished by ... very low (4) Water, being heavy, slips below petrol which thus remains in contact with air and burns

Last Answer : (4) Water, being heavy, slips below petrol which thus remains in contact with air and burns Explanation: Water is not effective on petrol fire because it has higher density than petrol as a ... extinguished with chemical foam which forms a blanket over the flames and cuts off the oxygen supply.

cooking needs of the village are mostly met by the burning of a) Biomass b) Petrol c) Diesel d) None of the above

Description : . cooking needs of the village are mostly met by the burning of a) Biomass b) Petrol c) Diesel d) None of the above

Last Answer : Biomass

Which of the following processes does not increase the amount of carbon dioxide in air ? (1) Breathing (2) Photosynthesis (3) Burning of petrol (4) Aerobic decay of vegetation

Description : Which of the following processes does not increase the amount of carbon dioxide in air ? (1) Breathing (2) Photosynthesis (3) Burning of petrol (4) Aerobic decay of vegetation

Last Answer : Photosynthesis

Why is water not suitable for putting out a petrol fire ? (1) The oxygen content of water is isolated by petrol and thus it helps in burning (2) Petrol is too inflammable to be extinguished by water (3) The heat required for combustion of petrol is very low (4) Water, being heavy, slips below petrol which thus remains in contact with air and burns

Description : Why is water not suitable for putting out a petrol fire ? (1) The oxygen content of water is isolated by petrol and thus it helps in burning (2) Petrol is too inflammable to be extinguished by ... very low (4) Water, being heavy, slips below petrol which thus remains in contact with air and burns 

Last Answer : Water, being heavy, slips below petrol which thus remains in contact with air and burns

Pick out the wrong statement. (A) Benzopyrene which causes cancer is present in traces in tobacco, charcoal & petrol driven automobile exhaust (B) NO2 is capable of penetrating the troposphere and can absorb both ultraviolet & visible light (C) Hydrocarbon pollutants are produced by sweet gum, oak & natural rubber trees (D) H2S is not at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2

Description : Pick out the wrong statement. (A) Benzopyrene which causes cancer is present in traces in tobacco, charcoal & petrol driven automobile exhaust (B) NO2 is capable of penetrating the troposphere and ... at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2

Last Answer : (D) H2S is not at all produced during combustion of sulphur bearing fuels as all the sulphur is oxidised to SO2

Steps taken by the Government of India to control air pollution include (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons (b) permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles (c) use of non-polluting compressed natural gas (CNG) only as fuel by all buses and trucks (d) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Description : Steps taken by the Government of India to control air pollution include (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and ... trucks (d) compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel.

Last Answer : (a) compulsory PUC (Pollution under control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons

'Green House Effect' means – (1) Pollution in houses in tropical regions (2) Trapping of solar energy due to atmospheric oxygen (3) Trapping of solar energy due to atmospheric carbon dioxide (4) Cultivation in green houses so as to check pollution

Description : 'Green House Effect' means – (1) Pollution in houses in tropical regions (2) Trapping of solar energy due to atmospheric oxygen (3) Trapping of solar energy due to atmospheric carbon dioxide (4) Cultivation in green houses so as to check pollution

Last Answer : (3) Trapping of solar energy due to atmospheric carbon dioxide Explanation: The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric ... fuels and clearing of forests, have intensified the natural greenhouse effect, causing global warming.

'Green House Effect' means - (1) cultivation of crops in green house to conserve heat (2) trapping of solar energy due to carbon dioxide gases (3) trapping of solar energy by earth upper surface (4) increase of heat due to atmospheric pollution

Description : 'Green House Effect' means - (1) cultivation of crops in green house to conserve heat (2) trapping of solar energy due to carbon dioxide gases (3) trapping of solar energy by earth upper surface (4) increase of heat due to atmospheric pollution

Last Answer : (2) trapping of solar energy due to carbon dioxide gases Explanation: Green House Effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases and is re-radiated in all directions.

Green House Effect' means (1) Pollution in houses in tropical region (2) Prevention of ultraviolet radiation by the ozone layer (3) Trapping of solar energy due to atmospheric gases (4) Damage to green painted buildings

Description : Green House Effect' means (1) Pollution in houses in tropical region (2) Prevention of ultraviolet radiation by the ozone layer (3) Trapping of solar energy due to atmospheric gases (4) Damage to green painted buildings

Last Answer : (3) Trapping of solar energy due to atmospheric gases Explanation: The greenhouse effect occurs when Earth's atmosphere traps solar radiation because of the presence of certain gases, causing the ... , nitrous oxide (N2O) and other gases, ac-cording to the Environmental Protection Agency (EPA

Green House Effect’ means (1) Pollution in houses in tropical region (2) Prevention of ultraviolet radiation by the ozone layer (3) Trapping of solar energy due to atmospheric gases (4) Damage to green painted buildings

Description : Green House Effect’ means (1) Pollution in houses in tropical region (2) Prevention of ultraviolet radiation by the ozone layer (3) Trapping of solar energy due to atmospheric gases (4) Damage to green painted buildings

Last Answer : Trapping of solar energy due to atmospheric gases

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Description : ‘Green House Effect’ means (1) cultivation of crops in green house to conserve heat (2) trapping of solar energy due to carbon dioxide gases (3) trapping of solar energy by earth upper surface (4) increase of heat due to atmospheric pollution 

Last Answer :  trapping of solar energy due to carbon dioxide gases

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Last Answer : Trapping of solar energy due to atmospheric carbon dioxide

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Description : Heavy metal pollution of water is caused by: (1) Paints (2) Wood burning (3) Acid Plants (4) Domestic sewage

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Minimum air pollution is caused by burning of a) coal b)kerosene c)LPG d)Diesel

Description : Minimum air pollution is caused by burning of a) coal b)kerosene c)LPG d)Diesel

Last Answer : c)LPG

Heavy metal pollution of water is caused by: (1) Paints (2) Wood burning (3) Acid Plants (4) Domestic sewage

Description : Heavy metal pollution of water is caused by: (1) Paints (2) Wood burning (3) Acid Plants (4) Domestic sewage

Last Answer : Paints

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Description : Natural sources of air pollution are (1) Forest fires (2) Volcanic eruptions (3) Dust storm (4) Smoke from burning dry leaves

Last Answer : Volcanic eruptions

28. Which one of the following statements regarding photochemical smog is not correct? (1) Photochemical smog does not cause irritation in eyes and throat (2) Carbon monoxide does not play any role in photochemical smog formation (3) Photochemical smog is an oxidizing agent in character (4) Photochemical smog is formed through photochemical reaction involving solar energy.

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Last Answer : Photochemical smog does not cause irritation in eyes and throat

What might cause burning bush leaves turn to turn brown and fall off?

Description : What might cause burning bush leaves turn to turn brown and fall off?

Last Answer : Need Answer

What is the cause of burning hands and feet ?

Description : What is the cause of burning hands and feet ?

Last Answer : Burns can be felt in the body especially in the palms of the hands and feet. Such as- * Neurological causes- If there is pressure on the nerves of the affected part ; * Hormonal causes - such problems can ... -D, etc., in many cases, burning sensation may be felt in the palms of the hands and feet.

Severe patothemic acid deficiency in man has been reported to cause (A) Burning feet syndrome (B) Scurvy (C) Cataract (D) Xeropththalmia

Description : Severe patothemic acid deficiency in man has been reported to cause (A) Burning feet syndrome (B) Scurvy (C) Cataract (D) Xeropththalmia

Last Answer : Answer : A

Several pantothenic acid deficiency in man has been reported to cause (A) Burning feet syndrome (B) Scurvy (C) Cataract (D) Xerophthalmia

Description : Several pantothenic acid deficiency in man has been reported to cause (A) Burning feet syndrome (B) Scurvy (C) Cataract (D) Xerophthalmia

Last Answer : Answer : C

Gamma rays can cause – (1) gene mutation (2) sneezing (3) burning (4) fever

Description : Gamma rays can cause – (1) gene mutation (2) sneezing (3) burning (4) fever

Last Answer : (1) gene mutation Explanation: In molecular biology and genetics, mutations are accidental changes in a genomic sequence of DNA: the DNA sequence of a cell's genome or the DNA or RNA ... viruses, transposons and mutagenic chemicals, as well as errors that, occur during meiosis or DNA replication.

Most benign cause of postmenopausal bleeding Cervical polyp Atrophic vaginitis 112-Pt came by hx os sudden eye pain burning vision photophobia and by ex. Small pupil and keretic cell on cornea and cell in humorus Ttt Cyclospoine + corticosteroid

Description : Most benign cause of postmenopausal bleeding Cervical polyp Atrophic vaginitis 112-Pt came by hx os sudden eye pain burning vision photophobia and by ex. Small pupil and keretic cell on cornea and cell in humorus Ttt Cyclospoine + corticosteroid

Last Answer : Cyclospoine + corticosteroid

Gamma rays can cause (1) gene mutation (2) sneezing (3) burning (4) fever

Description : Gamma rays can cause (1) gene mutation (2) sneezing (3) burning (4) fever

Last Answer : gene mutation

Pick out the correct statement. (A) Materials exhibiting high elasticity obey Hooke's law (B) The elastic behaviour of rubber under compression is the same as its behaviour under tension (C) The damping capacity of a material is due to its plastic deformation (D) The stress required to cause plastic flow in polycrystalline material is

Description : Pick out the correct statement. (A) Materials exhibiting high elasticity obey Hooke's law (B) The elastic behaviour of rubber under compression is the same as its behaviour under tension (C) ... to its plastic deformation (D) The stress required to cause plastic flow in polycrystalline material is

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‘Why excessive heating and repeated use of cooking oil are most undesirable? (1) The oil vapour can cause indoor pollution (2) Carcinogenic substances like benzpyrene are produced (3) Nutrient value of food is lost (4) Loss and wastage of oil

Description : ‘Why excessive heating and repeated use of cooking oil are most undesirable? (1) The oil vapour can cause indoor pollution (2) Carcinogenic substances like benzpyrene are produced (3) Nutrient value of food is lost (4) Loss and wastage of oil

Last Answer : (2) Carcinogenic substances like benzpyrene are produced Explanation: Repeated use of cooking oil at high temperatures will cause the hydraulic fat into free fatty acids are easily oxidized, so ... experts recommend eating foods that contain saturated fat less than 10 percent of the daily intake.

‘Why excessive heating and repeated use of cooking oil are most undesirable ? (1) The oil vapour can cause indoor pollution (2) Carcinogenic substances like benzpyrene are produced (3) Nutrient value of food is lost (4) Loss and wastage of oil

Description : ‘Why excessive heating and repeated use of cooking oil are most undesirable ? (1) The oil vapour can cause indoor pollution (2) Carcinogenic substances like benzpyrene are produced (3) Nutrient value of food is lost (4) Loss and wastage of oil

Last Answer : Carcinogenic substances like benzpyrene are produced

Why excessive heating and repeated use of cooking oil is most undesirable? (1) The oil vapours can cause indoor pollution (2) Carcinogenic substances like benzpyrene are produced (3) Nutrient value of food is lost (4) Loss and wastage of oil

Description : Why excessive heating and repeated use of cooking oil is most undesirable? (1) The oil vapours can cause indoor pollution (2) Carcinogenic substances like benzpyrene are produced (3) Nutrient value of food is lost (4) Loss and wastage of oil

Last Answer :  Carcinogenic substances like benzpyrene are produced

If cutting trees down to build houses and buildings cause pollution, what do we live in?

Description : If cutting trees down to build houses and buildings cause pollution, what do we live in?

Last Answer : it doesn't cause pollution, trees are a renewable resource what part of cutting trees would possibly cause pollution. btw, without trees we would other problems besides nowhere to live: no toilet ... mention all the chemical products and byproducts we get from them. please get your facts straight.

If cutting trees down to build houses and buildings cause pollution, what do we live in?

Description : If cutting trees down to build houses and buildings cause pollution, what do we live in?

Last Answer : it doesn't cause pollution, trees are a renewable resource what part of cutting trees would possibly cause pollution. btw, without trees we would other problems besides nowhere to live: no toilet ... mention all the chemical products and byproducts we get from them. please get your facts straight.

India is a country of cultural activities such as pilgrimage, religious fairs and tourism which cause surface water pollution. -Geography

Description : India is a country of cultural activities such as pilgrimage, religious fairs and tourism which cause surface water pollution. -Geography

Last Answer : (i) Awakening (ii) Cooperation (iii) Eco-friendly

Mini steel plants cause less pollution than integrated steel plants. -SST 10th

Description : Mini steel plants cause less pollution than integrated steel plants. -SST 10th

Last Answer : Mini steel plants work through electric furnaces causing less pollution whereas the integrated steel plant use blast furnace where cake coal are fed continuously to melt the iron ore, causing huge pollution.

How sewage cause water pollution? -Biology

Description : How sewage cause water pollution? -Biology

Last Answer : answer:

Can noise pollution cause brain damage ?

Description : Can noise pollution cause brain damage ?

Last Answer : Noise pollution causes sleep disturbances , anger , restlessness and mental illness in the brain.

How does the recycling industry cause air pollution ?

Description : How does the recycling industry cause air pollution ?

Last Answer : Various recycling industries, especially plastics , aluminum , lacquer , bronze-brass , fumes from the welding industry , toxic materials and metal particles combine in the air to cause air pollution. ... abandoned mobil or para mobil, organic matter gets mixed in the air and causes air pollution.

In what ways could the smoke stacks and the trucks cause pollution in the air?

Description : In what ways could the smoke stacks and the trucks cause pollution in the air?

Last Answer : Need answer

What substances cause indoor pollution?

Description : What substances cause indoor pollution?

Last Answer : What is the answer ?

Do fossil fuels cause air pollution How?

Description : Do fossil fuels cause air pollution How?

Last Answer : Fossil fuels (coal, oil and natural gas), when burnt, emit carbon dioxide, which is classed as a pollutant when it is released into the other greenhouse gases in the atmosphere. The ... levels of greenhouse gases causing an enhanced (or accelerated) greenhouse effect which is causing global warming.

Do landfills cause pollution?

Description : Do landfills cause pollution?

Last Answer : the garbage slowly goes into the water....pollution which leads to not making it safe for animals

The substances that cause air pollution are 1. Smoke 2. Sulphur dioxide 3. Argon 4. Carbon monoxide The correct answers are: (a) 1, 2 and 3 (b) 1, 2, 3 and 4 (c) 2, 3 and 4 (d) 1, 2 and 4

Description : The substances that cause air pollution are 1. Smoke 2. Sulphur dioxide 3. Argon 4. Carbon monoxide The correct answers are: (a) 1, 2 and 3 (b) 1, 2, 3 and 4 (c) 2, 3 and 4 (d) 1, 2 and 4

Last Answer : Ans:(d)

The most common cause of pollution of air is – (1) Carbon dioxide (2) Carbon monoxide (3) Sulphur dioxide (4) Smoke

Description : The most common cause of pollution of air is – (1) Carbon dioxide (2) Carbon monoxide (3) Sulphur dioxide (4) Smoke

Last Answer : (3) Sulphur dioxide Explanation: The most common sources of air pollution include particulates, ozone, nitrogen dioxide, and sulfur dioxide. The largest sources of SO2 emissions are from fossil fuel ... non-road equipment. It is linked with a number of adverse effects on the respiratory system.

Cause of Malaria is ----? A. Dirty environment B. Pollution C. Mosquito (Answer) D. None of above

Description : Cause of Malaria is ----? A. Dirty environment B. Pollution C. Mosquito (Answer) D. None of above

Last Answer : C. Mosquito (Answer)

The supersonic jets cause pollution by the thinning of (a) O2 layer (b) O3 layer (c) CO2 layer (d) SO2 layer.

Description : The supersonic jets cause pollution by the thinning of (a) O2 layer (b) O3 layer (c) CO2 layer (d) SO2 layer.

Last Answer : (b) O3 layer

Which is the cause of damage to relative biological effectiveness? (a) High temperature (b) Pollution (c) Radiation (d) Low temperature

Description : Which is the cause of damage to relative biological effectiveness? (a) High temperature (b) Pollution (c) Radiation (d) Low temperature

Last Answer : (b) Pollution

The advantage of spring irrigation are a. Water saving b. Equal distribution. c. Cause water pollution d. Plant diseases

Description : The advantage of spring irrigation are a. Water saving b. Equal distribution. c. Cause water pollution d. Plant diseases

Last Answer : a. Water saving b. Equal distribution.