Question 1

Red Data Book Provides data on&#10;A)Red flowered plants&#10;B)Red colored fishes&#10;C)Lists of plants and animals&#10;D)Endangered plants and animals

Accepted Answer

The Red Data Book is a comprehensive guide that provides information on the status of various species, including those that are endangered or threatened, focusing on plants and animals at risk of extinction.

Question 2

Wild life is continuously decreasing. What is the main reason of this?&#10;A)Predation&#10;B)Cutting down of forest&#10;C)Destruction of habitat&#10;D)Hunting

Accepted Answer

Destruction of habitat is the main reason for the continuous decrease in wildlife. When natural habitats are destroyed or fragmented, it disrupts the ecosystem and makes it difficult for wildlife to survive.

Question 3

What is the major cause of diminishing wildlife number?&#10;A)Felling of trees&#10;B)Cannibalism&#10;C)Habitat destruction&#10;D)Paucity of drinking water

Accepted Answer

Habitat destruction, which includes deforestation (felling of trees), urbanization, and other activities that lead to the loss of natural habitats, is the major cause of diminishing wildlife numbers. It affects the availability of food, shelter, and breeding grounds, leading to a decline in wildlife populations.

Question 4

Viable material of endangered species can be preserved by&#10;A)Gene bank&#10;B)Gene library&#10;C)Gene pool&#10;D)Herbarium

Accepted Answer

Gene banks are facilities where genetic material is stored, including seeds, sperm, eggs, or DNA of endangered species, to preserve their genetic diversity for future generations.

Question 5

Which of the following is mainly responsible for the extinction of wild life&#10;A)Pollution of air and water&#10;B)Hunting of flesh&#10;C)Destruction of Habitats&#10;D)All of these

Accepted Answer

All of the options listed contribute significantly to the extinction of wildlife. Pollution of air and water can lead to habitat degradation and directly harm wildlife health. Hunting, especially when unregulated, can lead to significant declines in animal populations. Destruction of habitats, perhaps the most direct cause, removes the very environments necessary for wildlife survival. Therefore, all these factors collectively play a major role in wildlife extinction.

Question 6

The unfavourable alteration of environment due to human activities is termed as&#10;A)ecological disturbance&#10;B)catastrophe&#10;C)ecological degradation&#10;D)pollution

Accepted Answer

Pollution specifically refers to the introduction of harmful substances or products into the environment due to human activities, leading to its degradation.

Question 7

Which of the following is the best indicator of SO₂ pollution A)bryophyte B)pteridophyte C)Lichen D)algae

Accepted Answer

Lichens are widely recognized as sensitive indicators of air pollution, particularly to sulfur dioxide. They absorb water and nutrients directly from the atmosphere, making them highly susceptible to airborne pollutants. When air quality is poor, lichen diversity and abundance typically decrease.

Question 8

Heavy dust can cause&#10;A)leaf blights&#10;B)opening of stomata&#10;C)closure of stomata&#10;D)browning of leaves

Accepted Answer

Heavy dust can cause the closure of stomata, which are tiny openings on the surfaces of leaves that allow for gas exchange. When these openings are blocked by dust, it can lead to reduced transpiration and gas exchange, potentially harming the plant.

Question 9

Which of the following is the major cause of pollution&#10;A)plants&#10;B)man&#10;C)fungi&#10;D)hydrocarbon gases

Accepted Answer

The answer of Which of the following is the major...

Question 10

Minamata disease was caused by pollution of water by&#10;A)mercury&#10;B)lead&#10;C)tin&#10;D)methyl iso cyanate

Accepted Answer

Minamata disease was caused by the consumption of fish and shellfish contaminated with methylmercury, which was discharged into Minamata Bay and the Shiranui Sea by industrial wastewater from the Chisso Corporation's chemical factory.

Question 11

A river with high BOD value is&#10;A)highly polluted&#10;B)highly clean&#10;C)highly productive&#10;D)none of these

Accepted Answer

The answer of A river with high BOD value is&#10;A)highly...

Question 12

5th June is observed as&#10;A)world forest day&#10;B)world environment day&#10;C)world wildlife day&#10;D)world population day

Accepted Answer

The answer of 5th June is observed as&#10;A)world forest day&#10;B)world...

Question 13

Cement factory labourers are prone to&#10;A)leukemia&#10;B)bone marrow disease&#10;C)asbestosis&#10;D)cytosilicosis

Accepted Answer

The answer of Cement factory labourers are prone to&#10;A)leukemia&#10;B)bone marrow...

Question 14

Noise is measured using sound meter and the unit is&#10;A)hertz&#10;B)decibel&#10;C)joule&#10;D)sound

Accepted Answer

The answer of Noise is measured using sound meter and...

Question 15

The undesirable change in physical, chemical or biological characteristics of air, land and water is referred as&#10;A)pollutants&#10;B)ecodestructions&#10;C)pollution&#10;D)all of these

Accepted Answer

The answer of The undesirable change in physical, chemical or...

Question 16

Which of the radioactive material is largely associated with bone cancer&#10;A)radium-226&#10;B)thorium-232&#10;C)Strontium-90&#10;D)iodine

Accepted Answer

The answer of Which of the radioactive material is largely...

Question 17

Lead poisoning A)reduces O₂ carrying capacity of haemoglobin in blood B)increases O₂ carrying capacity of haemoglobin in blood C)reduces O₂ carrying capacity of myoglobin in muscles D)increases O₂ carrying capacity of myoglobin in muscles

Accepted Answer

The answer of Lead poisoning A)reduces O₂ carrying capacity of haemoglobin...

Question 18

The occurrence of pesticides like DDT in higher trophic levels is termed as&#10;A)bioremediation&#10;B)biomagnification&#10;C)biological enhancement&#10;D)biopollution

Accepted Answer

The answer of The occurrence of pesticides like DDT in...

Question 19

Earth summit was held in&#10;A)Stockholm in 1972&#10;B)Rio de Jeneiro in 1992&#10;C)Paris in 1992&#10;D)New York in 1972

Accepted Answer

The answer of Earth summit was held in&#10;A)Stockholm in 1972&#10;B)Rio...

Question 20

All are physical pollutants except&#10;A)heat&#10;B)sound&#10;C)radiations&#10;D)soot

Accepted Answer

The answer of All are physical pollutants except&#10;A)heat&#10;B)sound&#10;C)radiations&#10;D)soot...

Question 21

All are primary pollutants except&#10;A)Ammonia&#10;B)Peroxy Acyl Nitrate (PAN)&#10;C)sulphur dioxide&#10;D)hydrogen sulphide

Accepted Answer

The answer of All are primary pollutants except&#10;A)Ammonia&#10;B)Peroxy Acyl Nitrate...

Question 22

Pollutants that are introduced into the environment by human activity are called as&#10;A)qualitative pollutants&#10;B)quantitative pollutants&#10;C)anthropogenic pollutants&#10;D)all of these

Accepted Answer

The answer of Pollutants that are introduced into the environment...

Deck 4: Environmental Issues and Pollution