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- Question 1 of 20
1. Question
The Millennium Ecosystem Assessment describes the following major categories of ecosystem services-provisioning, supporting, regulating, preserving and cultural. Which one of the following is supporting service? [2012]
CorrectSupporting services of Millennium Ecosystem Assessment are necessary for production of all other ecosystem services including soil formation, nutrient cycling, photosynthesis to name a few.
IncorrectSupporting services of Millennium Ecosystem Assessment are necessary for production of all other ecosystem services including soil formation, nutrient cycling, photosynthesis to name a few.
UnattemptedSupporting services of Millennium Ecosystem Assessment are necessary for production of all other ecosystem services including soil formation, nutrient cycling, photosynthesis to name a few.
- Question 2 of 20
2. Question
What is the difference between the antelopes Oryx and Chiru? [2012]
CorrectOryx has adapted to live in hot and arid areas where as Chiru is adapted to live in steppes and semi-desert areas of cold high mountains.
IncorrectOryx has adapted to live in hot and arid areas where as Chiru is adapted to live in steppes and semi-desert areas of cold high mountains.
UnattemptedOryx has adapted to live in hot and arid areas where as Chiru is adapted to live in steppes and semi-desert areas of cold high mountains.
- Question 3 of 20
3. Question
Which of the following can be threats to the biodiversity of a geographical area? [2012]
1. Global warming
2. Fragmentation of habitat
3. Invasion of alien species
4. Promotion of vegetarianism
Select the correct answer using the codes given below:CorrectExcept promotion of vegetarianism all other acts are threats to the biodiversity of a geographical area.
IncorrectExcept promotion of vegetarianism all other acts are threats to the biodiversity of a geographical area.
UnattemptedExcept promotion of vegetarianism all other acts are threats to the biodiversity of a geographical area.
- Question 4 of 20
4. Question
Consider the following agricultural practices: [2012]
1. Contour bunding
2. Relay cropping
3. Zero tillage
In the context of global climate change, which of the above helps/help in carbon sequestration/storage in the soil?CorrectAll the given agricultural practices help in carbon sequestration.
IncorrectAll the given agricultural practices help in carbon sequestration.
UnattemptedAll the given agricultural practices help in carbon sequestration.
- Question 5 of 20
5. Question
What would happen if phytoplankton of an ocean is completely destroyed for some reason? [2012]
1. The ocean as a carbon sink would be adversely affected.
2. The food chains in the ocean would be adversely affected.
3. The density of ocean water would drastically decrease.
Select the correct answer using the codes given below:CorrectIf phytoplankton of an ocean is completely destroyed for some reason then
(i) The ocean as a carbon sink would be adversely affected.
(ii) The food chains in the ocean would be adversely affected as the fishes live on them.IncorrectIf phytoplankton of an ocean is completely destroyed for some reason then
(i) The ocean as a carbon sink would be adversely affected.
(ii) The food chains in the ocean would be adversely affected as the fishes live on them.UnattemptedIf phytoplankton of an ocean is completely destroyed for some reason then
(i) The ocean as a carbon sink would be adversely affected.
(ii) The food chains in the ocean would be adversely affected as the fishes live on them. - Question 6 of 20
6. Question
Vultures which used to be very common in Indian countryside some years ago are rarely seen nowadays. This is attributed to [2012]
CorrectA drug used by cattle owners for treating their diseased cattle.
IncorrectA drug used by cattle owners for treating their diseased cattle.
UnattemptedA drug used by cattle owners for treating their diseased cattle.
- Question 7 of 20
7. Question
Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste? [2013]
1. Beryllium
2. Cadmium
3. Chromium
4. Heptachlor
5. Mercury
6. Lead
7. Plutonium
Select the correct answer using the codes given below.CorrectElectronic waste or E-waste has ferrous and non-ferrous metals both. Non-ferrous metals like copper, aluminium, silver, gold, platinum, palladium etc. The presence of elements like lead, mercury, arsenic, cadmium, selenium and hexavalent chromium are classified as hazardous waste.
IncorrectElectronic waste or E-waste has ferrous and non-ferrous metals both. Non-ferrous metals like copper, aluminium, silver, gold, platinum, palladium etc. The presence of elements like lead, mercury, arsenic, cadmium, selenium and hexavalent chromium are classified as hazardous waste.
UnattemptedElectronic waste or E-waste has ferrous and non-ferrous metals both. Non-ferrous metals like copper, aluminium, silver, gold, platinum, palladium etc. The presence of elements like lead, mercury, arsenic, cadmium, selenium and hexavalent chromium are classified as hazardous waste.
- Question 8 of 20
8. Question
With reference to food chains in ecosystems, consider the following statements: [2013]
1. A food chain illustrates the order in which a chain of organisms feed upon each other.
2. Food chains are found within the populations of a species.
3. A food chain illustrates the numbers of each organism which are eaten by others.
Which of the statements given above is/are correct?CorrectA food chain illustrates the order in which a chain of organisms feed upon each other.
A food chain is the sequence of who eats whom in a biological community to obtain nutrition.
Sample:- Grassland Biome
GRASS > GRASS HOPPER > RAT > SNAKE > HAWKIncorrectA food chain illustrates the order in which a chain of organisms feed upon each other.
A food chain is the sequence of who eats whom in a biological community to obtain nutrition.
Sample:- Grassland Biome
GRASS > GRASS HOPPER > RAT > SNAKE > HAWKUnattemptedA food chain illustrates the order in which a chain of organisms feed upon each other.
A food chain is the sequence of who eats whom in a biological community to obtain nutrition.
Sample:- Grassland Biome
GRASS > GRASS HOPPER > RAT > SNAKE > HAWK - Question 9 of 20
9. Question
In which of the following States is lion-tailed macaque found in its natural habitat? [2013]
1. Tamil Nadu
2. Kerala
3. Karnataka
4. Andhra Pradesh
Select the correct answer using the codes given below.CorrectLion-tailed Macaques are found in the mountain forests scattered across three Indian states stated above. The lion-tailed Macaques are endangered as per IUCN.
IncorrectLion-tailed Macaques are found in the mountain forests scattered across three Indian states stated above. The lion-tailed Macaques are endangered as per IUCN.
UnattemptedLion-tailed Macaques are found in the mountain forests scattered across three Indian states stated above. The lion-tailed Macaques are endangered as per IUCN.
- Question 10 of 20
10. Question
Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms? [2013]
CorrectEcological Niche is a term that describes the way of life of a species. Each species is thought to have a separate unique niche. The ecological niche describes how an organism or population responds to the distribution of resources and competitors. A niche is the sum of the habitat requirements that allow a species to persist and produce offspring.
IncorrectEcological Niche is a term that describes the way of life of a species. Each species is thought to have a separate unique niche. The ecological niche describes how an organism or population responds to the distribution of resources and competitors. A niche is the sum of the habitat requirements that allow a species to persist and produce offspring.
UnattemptedEcological Niche is a term that describes the way of life of a species. Each species is thought to have a separate unique niche. The ecological niche describes how an organism or population responds to the distribution of resources and competitors. A niche is the sum of the habitat requirements that allow a species to persist and produce offspring.
- Question 11 of 20
11. Question
Consider the following: [2013]
1. Star tortoise
2. Monitor lizard
3. Pygmy hog
4. Spider monkey
Which of the above are naturally found in India?CorrectStar tortoise is found in India in the dry and scrub forests. Pygmy Hog is an endangered species found in Assam. Only 150 animals are left. Monitor Lizard is found in India, Sri Lanka and Pakistan. Spider Monkey is the inhabitant of tropical forests of Central and South America.
IncorrectStar tortoise is found in India in the dry and scrub forests. Pygmy Hog is an endangered species found in Assam. Only 150 animals are left. Monitor Lizard is found in India, Sri Lanka and Pakistan. Spider Monkey is the inhabitant of tropical forests of Central and South America.
UnattemptedStar tortoise is found in India in the dry and scrub forests. Pygmy Hog is an endangered species found in Assam. Only 150 animals are left. Monitor Lizard is found in India, Sri Lanka and Pakistan. Spider Monkey is the inhabitant of tropical forests of Central and South America.
- Question 12 of 20
12. Question
Which of the following can be found as pollutants in the drinking water in some parts of India? [2013]
1. Arsenic
2. Sorbitol
3. Fluoride
4. Formaldehyde
5. Uranium
Select the correct answer using the codes given below.CorrectDrinking water in some parts of India has contaminants like Arsenic, Fluoride other than many other contaminants. The sources of Arsenic are run off from orchards. The sources of fluoride are erosion of natural deposits, discharge from fertilizers and aluminum factories.
IncorrectDrinking water in some parts of India has contaminants like Arsenic, Fluoride other than many other contaminants. The sources of Arsenic are run off from orchards. The sources of fluoride are erosion of natural deposits, discharge from fertilizers and aluminum factories.
UnattemptedDrinking water in some parts of India has contaminants like Arsenic, Fluoride other than many other contaminants. The sources of Arsenic are run off from orchards. The sources of fluoride are erosion of natural deposits, discharge from fertilizers and aluminum factories.
- Question 13 of 20
13. Question
Consider the following pairs: [2013]
1. Nokrek Bio-sphere Reserve : Garo Hills
2. Logtak (Loktak) Lake : Barail Range
3. Namdapha National Park : Dafla Hills
Which of the above pairs is/are correctly matched?CorrectNokrek Biosphere Reserve is situated in Garo Hills in Meghalaya. Loktak Lake is in Manipur. Barail Range is in Assam. Though Namdapha National Park and Dafla Hill both are in Arunachal Pradesh, the two are separate entities.
IncorrectNokrek Biosphere Reserve is situated in Garo Hills in Meghalaya. Loktak Lake is in Manipur. Barail Range is in Assam. Though Namdapha National Park and Dafla Hill both are in Arunachal Pradesh, the two are separate entities.
UnattemptedNokrek Biosphere Reserve is situated in Garo Hills in Meghalaya. Loktak Lake is in Manipur. Barail Range is in Assam. Though Namdapha National Park and Dafla Hill both are in Arunachal Pradesh, the two are separate entities.
- Question 14 of 20
14. Question
In the grasslands, trees do not replace the grasses as a part of an ecological succession because of [2013]
CorrectThe trees cannot replace the grasses as a part of an ecological succession because of water limits and fire.
IncorrectThe trees cannot replace the grasses as a part of an ecological succession because of water limits and fire.
UnattemptedThe trees cannot replace the grasses as a part of an ecological succession because of water limits and fire.
- Question 15 of 20
15. Question
Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity? [2013]
CorrectThe productivity of Mangroves > grasslands > lakes > oceans.
IncorrectThe productivity of Mangroves > grasslands > lakes > oceans.
UnattemptedThe productivity of Mangroves > grasslands > lakes > oceans.
- Question 16 of 20
16. Question
Consider the following fauna of India: [2013]
1. Gharial
2. Leatherback turtle
3. Swamp deer
Which of the above is/are endangered?CorrectGharial is critically endangered according to IUCN. Overhunting for skin and trophies, habitat loss due to construction of dams and barrages has been the reason for their decline. Leather back turtles are endangered due to human carelessness. Swamp deer occupies a place in the list of the endangered species of the world. Deforestation, draining of swamps and marshes for farming has led to the destruction of their natural habitat.
IncorrectGharial is critically endangered according to IUCN. Overhunting for skin and trophies, habitat loss due to construction of dams and barrages has been the reason for their decline. Leather back turtles are endangered due to human carelessness. Swamp deer occupies a place in the list of the endangered species of the world. Deforestation, draining of swamps and marshes for farming has led to the destruction of their natural habitat.
UnattemptedGharial is critically endangered according to IUCN. Overhunting for skin and trophies, habitat loss due to construction of dams and barrages has been the reason for their decline. Leather back turtles are endangered due to human carelessness. Swamp deer occupies a place in the list of the endangered species of the world. Deforestation, draining of swamps and marshes for farming has led to the destruction of their natural habitat.
- Question 17 of 20
17. Question
With reference to the food chains in ecosystems, which of the following kinds of organism is/are known as decomposer organism/organisms? [2013]
1. Virus
2. Fungi
3. Bacteria
Select the correct answer using the codes given below.CorrectBacteria and Fungi both are known as decomposer organisms. Bacteria are important decomposers; they can break down any kind of organic matters. Fungi are primary decomposers, they not only decompose the surface organisms but they can also penetrate deep into the organic matters.
IncorrectBacteria and Fungi both are known as decomposer organisms. Bacteria are important decomposers; they can break down any kind of organic matters. Fungi are primary decomposers, they not only decompose the surface organisms but they can also penetrate deep into the organic matters.
UnattemptedBacteria and Fungi both are known as decomposer organisms. Bacteria are important decomposers; they can break down any kind of organic matters. Fungi are primary decomposers, they not only decompose the surface organisms but they can also penetrate deep into the organic matters.
- Question 18 of 20
18. Question
Consider the following international agreements: [2014]
1. The International Treaty on Plant Genetic Resources for Food and Agriculture.
2. The United Nations Convention to Combat Desertification.
3. The World Heritage Convention.
Which of the above has/have a bearing on the biodiversity?CorrectThe International Treaty on Plant Genetic Resources for Food and Agriculture aims at guaranteeing food security through the conservation, exchange and sustainable use of the world’s plant genetic resources for food and agriculture. The United Nations Convention to Combat Desertification is a Convention to combat desertification and mitigate the effects of drought. The World Heritage Convention is concerned with the protection of the world cultural and natural heritage.All three of them have a bearing on the biodiversity.
IncorrectThe International Treaty on Plant Genetic Resources for Food and Agriculture aims at guaranteeing food security through the conservation, exchange and sustainable use of the world’s plant genetic resources for food and agriculture. The United Nations Convention to Combat Desertification is a Convention to combat desertification and mitigate the effects of drought. The World Heritage Convention is concerned with the protection of the world cultural and natural heritage.All three of them have a bearing on the biodiversity.
UnattemptedThe International Treaty on Plant Genetic Resources for Food and Agriculture aims at guaranteeing food security through the conservation, exchange and sustainable use of the world’s plant genetic resources for food and agriculture. The United Nations Convention to Combat Desertification is a Convention to combat desertification and mitigate the effects of drought. The World Heritage Convention is concerned with the protection of the world cultural and natural heritage.All three of them have a bearing on the biodiversity.
- Question 19 of 20
19. Question
Consider the following statements regarding ‘Earth Hour’: [2014]
1. It is an initiative of UNEP and UNESCO.
2. It is a movement in which the participants switch off the lights for one hour on a certain day every year.
3. It is a movement to raise the awareness about the climate change and the need to save the planet.
Which of the statements given above is/are correct?CorrectEarth Hour is a worldwide movement for the planet organized by the World Wide Fund for Nature (WWF). The event is held worldwide annually encouraging individuals, communities, households and businesses to turn off their non-essential lights for one hour, from 8:30 to 9:30 p.m. to raise the awareness about the climate change and the need to save the planet.
IncorrectEarth Hour is a worldwide movement for the planet organized by the World Wide Fund for Nature (WWF). The event is held worldwide annually encouraging individuals, communities, households and businesses to turn off their non-essential lights for one hour, from 8:30 to 9:30 p.m. to raise the awareness about the climate change and the need to save the planet.
UnattemptedEarth Hour is a worldwide movement for the planet organized by the World Wide Fund for Nature (WWF). The event is held worldwide annually encouraging individuals, communities, households and businesses to turn off their non-essential lights for one hour, from 8:30 to 9:30 p.m. to raise the awareness about the climate change and the need to save the planet.
- Question 20 of 20
20. Question
Which one of the following is the correct sequence of a food chain? [2014]
CorrectDiatoms are autotrophs which prepare their own food. Crustaceans are herbivorous animals which feed on diatoms. Herrings are carnivorous animals which feed on Crustaceans. This completes the food chain. Diatoms are autotrophs, prepare their own food. Crustaceans eats diatoms. Crustaceans are members of zooplankons and are eaten by Herring fish when small.
IncorrectDiatoms are autotrophs which prepare their own food. Crustaceans are herbivorous animals which feed on diatoms. Herrings are carnivorous animals which feed on Crustaceans. This completes the food chain. Diatoms are autotrophs, prepare their own food. Crustaceans eats diatoms. Crustaceans are members of zooplankons and are eaten by Herring fish when small.
UnattemptedDiatoms are autotrophs which prepare their own food. Crustaceans are herbivorous animals which feed on diatoms. Herrings are carnivorous animals which feed on Crustaceans. This completes the food chain. Diatoms are autotrophs, prepare their own food. Crustaceans eats diatoms. Crustaceans are members of zooplankons and are eaten by Herring fish when small.