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

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

1 Answer

Answer :

Paints
by

Related questions

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 : (1) Paints Explanation: Heavy metals (cadmium, cobalt, chromium, copper, mercury, manganese, nickel, lead, zinc, molybdenum, tin) are among the main pollutants. Industrial paints are loaded with ... these has severe toxic effects on living beings, and tend to accumulate in aquatic food chains.

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from (a) domestic sewage (b) dairy industry (c) petroleum industry (d) sugar industry.

Description : Biochemical Oxygen Demand (BOD) may not be a  good index for pollution for water bodies receiving  effluents from (a) domestic sewage (b) dairy industry (c) petroleum industry (d) sugar industry.

Last Answer : c) petroleum industry

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from (a) domestic sewage (b) dairy industry (c) petroleum industry (d) sugar industry.

Description : Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from (a) domestic sewage (b) dairy industry (c) petroleum industry (d) sugar industry.

Last Answer : (c) petroleum industry

Dried sewage after treatment is used as A. Fertilizer B. Building material C. Chemical for lowering B.O.D. D. Base material for paints

Description : Dried sewage after treatment is used as A. Fertilizer B. Building material C. Chemical for lowering B.O.D. D. Base material for paints

Last Answer : ANS: A

The domestic sewage in large cities (a) has a high BOD as it contains both aerobic and anaerobic bacteria (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs) (c) when treated in STPs does not really require the aeration step as the sewage contains adequate oxygen (d) has very high amount of suspended solids and dissolved salts.

Description : The domestic sewage in large cities (a) has a high BOD as it contains both aerobic and anaerobic bacteria (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in ... sewage contains adequate oxygen (d) has very high amount of suspended solids and dissolved salts.

Last Answer : (b) is processed by aerobic and then anaerobic bacteria in the secondary treatment in Sewage Treatment Plants (STPs)

The liquid waste from kitchens and baths, of residences is known as: (1) Domestic sewage (2) Storm water (3) Sullage (4) Refuse

Description : The liquid waste from kitchens and baths, of residences is known as: (1) Domestic sewage (2) Storm water (3) Sullage (4) Refuse

Last Answer : (3) Sullage Explanation: The liquid waste from kitchens and baths, of residence is known as sullage.

The liquid waste from kitchens and baths, of residences is known as : (1) Domestic sewage (2) Storm water (3) Sullage (4) Refuse

Description : The liquid waste from kitchens and baths, of residences is known as : (1) Domestic sewage (2) Storm water (3) Sullage (4) Refuse

Last Answer : Sullage

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

Paints with white lead base are suitable for painting of (A) Wood work (B) Iron work (C) Both wood work and iron work (D) None of the ab

Description : Paints with white lead base are suitable for painting of (A) Wood work (B) Iron work (C) Both wood work and iron work (D) None of the above

Last Answer : Answer: Option A

Precipitation or coagulation of proteins may be caused by (a) Heat (b) Changes in pH (c) Heavy metal salts (d) All of these

Description : Precipitation or coagulation of proteins may be caused by (a) Heat (b) Changes in pH (c) Heavy metal salts (d) All of these

Last Answer : All of these

When domestic sewage mixes with river water

Description : When domestic sewage mixes with river water

Last Answer : When domestic sewage mixes with river water A. Small animals like rats will die after drinking ... for drinking as impurities are only about 0.1%

When domestic sewage mixes with river water

Description : When domestic sewage mixes with river water

Last Answer : When domestic sewage mixes with river water A. The increased microbial activity releases micronutrients ... rats will die after drinking river water

What is domestic sewage and haze does it threaten water supplies?

Description : What is domestic sewage and haze does it threaten water supplies?

Last Answer : What is the answer ?

Dry water flow in a combined sewer, is A. Industrial sewage B. Domestic sewage C. Storm water D. Inclusive of domestic and industrial sewage but excludes storm water

Description : Dry water flow in a combined sewer, is A. Industrial sewage B. Domestic sewage C. Storm water D. Inclusive of domestic and industrial sewage but excludes storm water

Last Answer : ANS: C

The water carried sewerage system removes A. Domestic sewage B. Industrial sewage C. Storm sewage D. All the above

Description : The water carried sewerage system removes A. Domestic sewage B. Industrial sewage C. Storm sewage D. All the above

Last Answer : ANS: D

When domestic sewage mixes with river water (a) small animals like rats will die after drinking river water (b) the increased microbial activity releases micronutrients such as iron (c) the increased microbial activity uses up dissolved oxygen (d) the river water is still suitable for drinking as impurities are only about 0.1%.

Description : When domestic sewage mixes with river water (a) small animals like rats will die after drinking  river water (b) the increased microbial activity releases  micronutrients such as iron (c) the increased ... (d) the river water is still suitable for drinking as  impurities are only about 0.1%.

Last Answer : (c) the increased microbial activity uses up  dissolved oxygen

A lake with an inflow of domestic sewage rich in organic waste may result in

Description : A lake with an inflow of domestic sewage rich in organic waste may result in

Last Answer : A lake with an inflow of domestic sewage rich in organic waste may result in A. ... increased production of fish due to biodegradable nutreints.

In domestic sewage, suspended solids, colloidal and dissolved materials constitute

Description : In domestic sewage, suspended solids, colloidal and dissolved materials constitute

Last Answer : In domestic sewage, suspended solids, colloidal and dissolved materials constitute A. 0.1 B. 0.056 C. 0.027 D. 0.001

A lake with an inflow of domestic sewage rich in organic waste may result in

Description : A lake with an inflow of domestic sewage rich in organic waste may result in

Last Answer : A lake with an inflow of domestic sewage rich in organic waste may result in A. Drying up ... to oxygen depletion D. Increased food web organisation.

A lake with an inflow of domestic sewage rich in organic waste may result in

Description : A lake with an inflow of domestic sewage rich in organic waste may result in

Last Answer : A lake with an inflow of domestic sewage rich in organic waste may result in A. Drying of the river very ... . D. Death of fish due to lack of oxygen.

A lake with an inflow of domestic sewage rich in organic waste may result in

Description : A lake with an inflow of domestic sewage rich in organic waste may result in

Last Answer : A lake with an inflow of domestic sewage rich in organic waste may result in A. Drying ... D. Increased population of aquatic food web organisms

A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen (c) drying of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.

Description : A river with an inflow of domestic sewage rich in  organic waste may result in  (a) an increased production of fish due to  biodegradable nutrients (b) death of fish due to lack of oxygen ( ... of the river very soon due to algal bloom (d) increased population of aquatic food web  organisms.

Last Answer : (d) increased population of aquatic food web  organisms.

A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen (c) drying of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.

Description : A river with an inflow of domestic sewage rich in organic waste may result in (a) an increased production of fish due to biodegradable nutrients (b) death of fish due to lack of oxygen (c) drying of the river very soon due to algal bloom (d) increased population of aquatic food web organisms.

Last Answer : (b) death of fish due to lack of oxygen

Solid content in most of the domestic sewage is about __________ percent. (A) 0.001 (B) 0.1 (C) 5 (D) 10

Description : Solid content in most of the domestic sewage is about __________ percent. (A) 0.001 (B) 0.1 (C) 5 (D) 10

Last Answer : (B) 0.1

Fresh domestic sewage is __________ in color. (A) Grey (B) Dark brown(C) Red(D) Black

Description : Fresh domestic sewage is __________ in color. (A) Grey (B) Dark brown (C) Red (D) Black

Last Answer : (A) Grey

When domestic sewage / fertilisers is released into rivers , the growth of algae and bacteria is a) promoted b)not affected c)inhibited d)None of the above

Description : When domestic sewage / fertilisers is released into rivers , the growth of algae and bacteria is a) promoted b)not affected c)inhibited d)None of the above

Last Answer : a) promoted

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.

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 about coating/electroplating of metals. (A) Phosphate coating is used as an excellent base for paints & enamels (B) Phosphate coating is less corrosion resistant than chromate coating (C) The base metal to be electroplated is normally made the cathode of the electrolytic cell and coating metal is made the anode (D) Calorising is the process of coating steel with chromium

Description : Pick out the wrong statement about coating/electroplating of metals. (A) Phosphate coating is used as an excellent base for paints & enamels (B) Phosphate coating is less corrosion resistant than ... coating metal is made the anode (D) Calorising is the process of coating steel with chromium

Last Answer : (D) Calorising is the process of coating steel with chromium

How sewage cause water pollution? -Biology

Description : How sewage cause water pollution? -Biology

Last Answer : answer:

Which of the following is the largest source of water pollution in major rivers of India? (A) Untreated sewage (B) Agriculture run-off (C) Unregulated small scale industries (D) Religious practices

Description : Which of the following is the largest source of water pollution in major rivers of India? (A) Untreated sewage (B) Agriculture run-off (C) Unregulated small scale industries (D) Religious practices

Last Answer : (A) Untreated sewage

The primary source of organic pollution in fresh water bodies is (A) run-off urban areas (B) run-off from agricultural forms (C) sewage effluents (D) industrial effluents

Description : The primary source of organic pollution in fresh water bodies is (A) run-off urban areas (B) run-off from agricultural forms (C) sewage effluents (D) industrial effluents

Last Answer : (C) sewage effluents

Acid rain is caused by, the pollution of environment by - (1) carbon dioxide and nitrogen (2) carbon monoxide and carbon dioxide (3) ozone and carbon dioxide (4) nitrous oxide and sulphur dioxide

Description : Acid rain is caused by, the pollution of environment by - (1) carbon dioxide and nitrogen (2) carbon monoxide and carbon dioxide (3) ozone and carbon dioxide (4) nitrous oxide and sulphur dioxide

Last Answer : (1) carbon dioxide and nitrogen

Acid rain is caused by the pollution of environment by - (1) carbon dioxide and nitrogen (2) carbón monoxide and carbon dioxide (3) ozone and carbon dioxide (4) nitrous oxide and sulphur dioxide

Description : Acid rain is caused by the pollution of environment by - (1) carbon dioxide and nitrogen (2) carbón monoxide and carbon dioxide (3) ozone and carbon dioxide (4) nitrous oxide and sulphur dioxide

Last Answer : (4) nitrous oxide and sulphur dioxide

Acid rain is caused by the pollution of environment by – (1) Carbon monoxide and Carbon dioxide (2) Ozone and Carbon dioxide (3) Nitrous oxide and Sulphur dioxide (4) Carbon dioxide and Nitrogen

Description : Acid rain is caused by the pollution of environment by – (1) Carbon monoxide and Carbon dioxide (2) Ozone and Carbon dioxide (3) Nitrous oxide and Sulphur dioxide (4) Carbon dioxide and Nitrogen

Last Answer : (3) Nitrous oxide and Sulphur dioxide Explanation: Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances ... acidic pollutants, known as acid rain. Human activities are the main cause of acid rain.

Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorus (4) None of these

Description : Acid rain is caused due to pollution of atmosphere by – (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorus (4) None of these

Last Answer : (2) oxides of nitrogen and sulphur Explanation: Acid rain is caused by emissions of Sulpfur Dioxide (SO2) and Nitrogen Oxide (NOx), which react with the water molecules in the atmosphere to produce acids.

Acid rain is caused by the pollution of environment by (1) Carbon monoxide and Carbon dioxide (2) Ozone and Carbon dioxide (3) Nitrous oxide and Sulphur dioxide (4) Carbon dioxide and Nitrogen

Description : Acid rain is caused by the pollution of environment by (1) Carbon monoxide and Carbon dioxide (2) Ozone and Carbon dioxide (3) Nitrous oxide and Sulphur dioxide (4) Carbon dioxide and Nitrogen

Last Answer : Actually Yes it is  The place with low humidity with the salt mixture in the air   Like places which have coal Brun, High urban population with modern gas transportaion and near to the beach where ... Salt helps these gases to mix well and give acid rain Places like Vizag in Andhra Pradesh 

Acid rain is caused due to pollution of atmosphere by (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorous (4) None of these

Description : Acid rain is caused due to pollution of atmosphere by (1) oxides of carbon and nitrogen (2) oxides of nitrogen and sulphur (3) oxides of nitrogen and phosphorous (4) None of these

Last Answer : oxides of nitrogen and sulphur

Environmental pollution can be controlled by: (1) Checking atomic blasts (2) Manufacturing electric vehicles (3) Sewage treatment (4) All of the above

Description : Environmental pollution can be controlled by: (1) Checking atomic blasts (2) Manufacturing electric vehicles (3) Sewage treatment (4) All of the above

Last Answer : All of the above

Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel

Description : Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the (A) Industrial chimney exhaust (B) Automobiles exhaust (C) Photochemical reaction in polluted atmosphere (D) Burning of domestic fuel

Last Answer : (B) Automobiles exhaust

A pond contains clean water. Which of the following activities will produce least pollution of water? a) Washing clothes in the pond c)domestic waste b) industrial waste d)Swimming in the pond

Description : A pond contains clean water. Which of the following activities will produce least pollution of water? a) Washing clothes in the pond c)domestic waste b) industrial waste d)Swimming in the pond

Last Answer : d)Swimming in the pond

Domestic waste constitutes (a) non-biodegradable pollution (b) biodegradable pollution (c) effluents (d) air pollution.

Description : Domestic waste constitutes (a) non-biodegradable pollution (b) biodegradable pollution (c) effluents (d) air pollution.

Last Answer : (b) biodegradable pollution

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

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

Last Answer : (2) Volcanic eruptions Explanation: Some of the natural sources of air pollution are ground dust, salt spray from oceans, volcanic eruptions, hydrogen sulfides from natural sources, etc. ... and ash from volcanic eruptions blacken the skies and increase the background pollution levels for years.

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

Description : 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

Last Answer : (2) Use of solar energy Explanation: Use of solar energy does not cause pollution.

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

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

My husband's legs are burning ? My husband is 29 years old. A lot of it burns one leg. Burns more on hot days. The legs sweat a lot , and the legs become heavy. The left leg hurts all the time. What is the remedy ? ( He has no problem with diabetes or pressure)

Description : My husband's legs are burning ? My husband is 29 years old. A lot of it burns one leg. Burns more on hot days. The legs sweat a lot , and the legs become heavy. The left leg hurts all the time. What is the remedy ? ( He has no problem with diabetes or pressure)

Last Answer : I am giving treatment based on your question , although it would be better to give more details. You can try these medicines by taking ---- " Cap- Pregaba / Gaba-P / Nervalin 25 mg. 1 + 0 + 1 10 days after ... during or after the medicine. Or seek the help of a specialist.

Transboundary pollution (or) Acid rain is caused by – (1) Carbon monoxide (2) Carbon dioxide (3) Hydrocarbon (4) Nitrogen oxide and sulphur dioxide

Description : Transboundary pollution (or) Acid rain is caused by – (1) Carbon monoxide (2) Carbon dioxide (3) Hydrocarbon (4) Nitrogen oxide and sulphur dioxide

Last Answer : (4) Nitrogen oxide and sulphur dioxide Explanation: Acid rain is a rain or any other form of precipitation that is unusually acidic, meaning that it possesses elevated levels of hydrogen ions ( ... dioxide and nitrogen oxide, which react with the water molecules in the atmosphere to produce acids.

Transboundary pollution (or) Acid rain is caused by : (1) Carbon monoxide (2) Carbon dioxide (3) Hydrocarbon (4) Nitrogen oxide and sulphur dioxide

Description : Transboundary pollution (or) Acid rain is caused by : (1) Carbon monoxide (2) Carbon dioxide (3) Hydrocarbon (4) Nitrogen oxide and sulphur dioxide 

Last Answer : Nitrogen oxide and sulphur dioxide

In silvery paints, the main constituent present is - (1) Aluminium powder (2) Silver powder (3) Lead powder (4) White lead

Description : In silvery paints, the main constituent present is - (1) Aluminium powder (2) Silver powder (3) Lead powder (4) White lead

Last Answer : (1) Aluminium powder Explanation: In silvery paints, the main constituent is aluminium powder.