Pollution Test 2

Total Questions:50 Total Time: 75 Min

Remaining:

 

Questions 1 of 50

Question:Water pollution can be stopped best by

Answers Choices:

Treating effluents to remove injurious chemicals

Rearing more fishes

Cultivating useful water plants

Spraying with DDT

Questions 2 of 50

Question:Where did the epidemic bone softening disease 'Itai -Itai' occurred first

Answers Choices:

Burma

Japan

South Korea

USA

Questions 3 of 50

Question:What was the cause of "Yusho" disease which occurred in 1968 from a leak in canning factory

Answers Choices:

DBCP

PCB

Formaldehyde

Mercury

Questions 4 of 50

Question:Which of the following would be a natural pollutant

Answers Choices:

Forest fires

Eutrophication

Occurrence of smog

Occurrence of \({\rm{N}}{O_{\rm{2}}}\) in atmosphere

Questions 5 of 50

Question:Brewery and sugar factory waste alters the quality of a water body by increasing

Answers Choices:

Temperature

Turbidity

pH

COD and BOD

Questions 6 of 50

Question:Which of the following pollutants are inevitably associated with the existence of man

Answers Choices:

Sewage

Industrial waste

Exhaust emissions

Pesticides and insecticides

Questions 7 of 50

Question:Cleaning Environment with biological options such as microbes & plants is called

Answers Choices:

Bioremediation

Biotechnology

Biowarware

Incineration

Questions 8 of 50

Question:Non-ionising radiations damaging to DNA are

Answers Choices:

X-rays

UV rays

Gamma rays

Beta rays

Questions 9 of 50

Question:Which of the following is a photochemical reaction product

Answers Choices:

CO and \(C{O_2}\)

\(S{O_2}\)

\({O_3}\)

Fluorides

Questions 10 of 50

Question:In a polluted lake, the index of pollution is

Answers Choices:

BOD and Daphnia

DO and Artemisia

Presence of frogs

Diatoms larvae

Questions 11 of 50

Question:One of the following is the chief source of water and soil pollution

Answers Choices:

Agro industry

Mining

Thermal power stations

All of these

Questions 12 of 50

Question:Carbon monoxide (CO) is harmful to man because

Answers Choices:

It forms carbolic acid

It generates excess \({\rm{C}}{O_{\rm{2}}}\)

It is carcinogenic

It competes with \({O_{\rm{2}}}\) for haemoglobin

Questions 13 of 50

Question:Green house effect is due to the presence of

Answers Choices:

Ozone layer in the atmosphere

Infrared light reaching the earth

Moisture layer in the atmosphere

\({\rm{C}}{O_{\rm{2}}}\) layer in the atmosphere

Questions 14 of 50

Question:A pollutant is an agent which causes change in

Answers Choices:

Balance of nature

Local flora

Geochemical cycles

Local fauna

Questions 15 of 50

Question:Polluted water can be purified by using

Answers Choices:

Micro-organisms

Algae

Pesticides

Fishes

Questions 16 of 50

Question:Sewage water can be purified for recycling with the action of

Answers Choices:

Aquatic plants

Penicillin

Micro-organisms

Fishes

Questions 17 of 50

Question:Domestic waste contains

Answers Choices:

Non-biodegradable pollutants

Biodegradable pollutants

Hydrocarbons

None of the above

Questions 18 of 50

Question:Foul smell in the water of tanks, ponds etc. is due to

Answers Choices:

Anaerobiosis

Aerobiosis

Biological magnification

Psammophytes

Questions 19 of 50

Question:Measurement of the rate of \({O_{\rm{2}}}\) consumption in unit volume of water over a period of time is done to find out

Answers Choices:

Biogas generation

Biochemical oxygen demand

Biosynthetic pathways

Fermentation

Questions 20 of 50

Question:Formation of ozone hole is maximum over

Answers Choices:

India

Antarctica

Europe

Africa

Questions 21 of 50

Question:Which one of the following organisms is used as indicator of water quality

Answers Choices:

Biggiata

Chlorella

Azospihllum

Escherichia

Questions 22 of 50

Question:A dental disease characterised by mottling of teeth is due to presence of a certain chemical element in drinking water. Which is that element

Answers Choices:

Boron

Chlorine

Fluorine

Mercury

Questions 23 of 50

Question:Most harmful pollutant is

Answers Choices:

\(C{O_2}\)

\({SO_{\rm{3}}}\)

\({NO_{\rm{2}}}\)

\({\rm{C}}{{\rm{H}}_{\rm{4}}}\)

\(S{O_2}\)

Questions 24 of 50

Question:Biodegradable pollutant is

Answers Choices:

Plastic

Asbestos

Sewage

All of these

Questions 25 of 50

Question:'Heat islands' are produced due to

Answers Choices:

Air pollution

Water pollution

Land pollution

All the above

Questions 26 of 50

Question:In big cities, air pollution is due to

Answers Choices:

Burning of fossil fuels

Thermal power plant

Sewage

\({{\rm{H}}_{\rm{2}}}{\rm{S}}\)

Questions 27 of 50

Question:Phosphate pollution is caused by

Answers Choices:

Phosphate rock only

Agricultural fertilizers only

Sewage and phosphate rock

Sewage and agricultural fertilizers

Questions 28 of 50

Question:Most hazardous metal pollutant of automobile exhaust is

Answers Choices:

Mercury

Lead

Cadmiur

Copper

Questions 29 of 50

Question:Photochemical smog always contains

Answers Choices:

\({O_{\rm{3}}}\)

\({\rm{C}}{{\rm{H}}_{\rm{4}}}\)

CO

None of these

Questions 30 of 50

Question:Which important green-house gas, other than methane, is being produced from the agricultural fields

Answers Choices:

Arsine

Sulphur dioxide

Ammonia

Nitrous oxide

Questions 31 of 50

Question:The ultimate environmental hazard to mankind is

Answers Choices:

Air pollution

Water pollution

Noise pollution

Nuclear pollution

Questions 32 of 50

Question:Aerosols reduce primary productivity by

Answers Choices:

Destroying leaf tissue

Premature leaf fall

Reducing crop yields

All of these

Questions 33 of 50

Question:Water pollution is caused by

Answers Choices:

Ammonia

Phytoplankton

Industrial effluents

Smoke

Questions 34 of 50

Question:The most adverse effect of radioactive pollutant is

Answers Choices:

Gene mutation

Hepatitis

Polio

T.B.

Questions 35 of 50

Question:Acid rain is the secondary effect of

Answers Choices:

Water pollution

Air pollution

Soil pollution

Sound pollution

Questions 36 of 50

Question:Which are sensitive to \(S{O_2}\) pollution

Answers Choices:

Mosses

Algae

Lichen

Ferns

Questions 37 of 50

Question:Main air pollutant is

Answers Choices:

\({\RM{C}}{O_{\RM{2}}}\)

CO

\({{\rm{N}}_{\rm{2}}}\)

Sulphur

Questions 38 of 50

Question:Effect of pollution is on

Answers Choices:

Crossing over

Ecological balance

Linkage

Mutation

Questions 39 of 50

Question:The pesticide used as preventive measure in buildings is

Answers Choices:

Aldrin

Dieldrin

Endrin

DDT

Questions 40 of 50

Question:Frequent occurrence of water blooms in a lake indicates

Answers Choices:

Nutrient deficiency

Oxygen deficiency

Excessive nutrient availability

Absence of herbivores in the lake

Questions 41 of 50

Question:Which of the following pollutant is released in larger quantity from the exhaust emission of a petrol/diesel automobile

Answers Choices:

\(CO\)

\({\rm{C}}{{\rm{O}}_2}\)

\(N{O_2},S{O_2}\) and \(Pb\)

Hydrocarbons

Questions 42 of 50

Question:The noise produced in office is normally at the level of

Answers Choices:

20 db.

30 db.

40 db.

60 db.

Questions 43 of 50

Question:Which of the following is responsible for depletion of ozone layer

Answers Choices:

Dichlorophenyl trichloroethane

Chlorofluorocarbons

ecu

Polyvinyl chloride (PVC)

Questions 44 of 50

Question:Which of the following strategy is not useful for global warming

Answers Choices:

Use of fossil fuel in limit

Increase in forest

Increasing use of nitrogen fertilizers

Use of other options in the place of CFC.

Questions 45 of 50

Question:Eutrophication can be observed in

Answers Choices:

Saline soil

Desert

Lake

Agricultural fields

Questions 46 of 50

Question:Which one of the following pairs is mismatched

Answers Choices:

Fossil fuel burning - release of \(C{O_2}\)

Nuclear power - radioactive wastes

Solar energy - Greenhouse effect

Biomass burning - release of \(C{O_2}\)

Questions 47 of 50

Question:Bio-indicators are used for

Answers Choices:

Oxygen demand

Air pollution

Mineral present

All of these

Questions 48 of 50

Question:According to Kyoto protocol the major nations abide to reduce concentration of green house gases by

Answers Choices:

2008

2010

2012

2018

Questions 49 of 50

Question:HeLa cells used in cell biology are

Answers Choices:

Cancerous cells grown in cancer research laboratory

Cervical cancer cell derivatives

Both (1) and (2)

None of these

Questions 50 of 50

Question:In 20\({O_{\rm{2}}}\) A.D. according to research the concentration of CFC reached to

Answers Choices:

368 ppm

1750 ppb

261 ppt

326 ppb