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Question Bank No: 3

1. World environment day is

a)		28th Feb
b)		5th June
c)		7th Aug
d)		26th March

2. Green house effect is due to accumulation of

a)		$O_{3}$ and depletion of ${CO}_{2}$
b)		$O_{3}$ and ${CO}_{2}$
c)		${CO}_{2}$ and depletion of $O_{3}$
d)		Green plants

3. Concentration of green house gases is increasing due to

a)		Deforestation
b)		Increased use of refrigerators
c)		Increased combustion of coal and petroleum
d)		All the above

4. Green house gases include

a)		${CO}_{2}$ , CFC, ${CH}_{4}$ , and ${NO}_{2}$
b)		${CO}_{2}$ , $O_{2}$ , $N_{2}$ , ${NO}_{2}$ and ${NH}_{3}$
c)		${CH}_{4}$ , $N_{2}$ , ${CO}_{2}$ , and ${NH}_{3}$
d)		CFC, ${CO}_{2}$ , ${NH}_{3}$ and $N_{2}$

5. Acid rain is due to increase in atmospheric concentration of

a)		Ozone and dust
b)		${CO}_{2}$ and CO
c)		${SO}_{3}$ and CO
d)		${SO}_{2}$ and ${NO}_{2}$

6. Taj may be distroyed by

a)		Flood in Yamuna
b)		Temperature mediated spoilage of marble
c)		Air pollutants from Mathura refinery
d)		All the above

7. Ultraviolet radiations from sunlight causes a reaction that produces

a)		Fluorides
b)		Carbon monoxide
c)		Sulphur dioxide
d)		Ozone

8. Ozone depletion in stratosphere shall result in

a)		Forest fires
b)		Increased incidence of skin cancer
c)		Global warming
d)		None of the above

9. ${SO}_{2}$ pollution is indicated by

a)		Deschampsia (grasses)
b)		Sphagnum (mosses)
c)		Usnea (lichens)
d)		Cucurbita (climbers)

10. National Environmental Planning Engineering Organisation at NAgpur is

a)		NEERI
b)		CPHER
c)		ICAR
d)		CSIR

11. Spraying of DDT produces pollution of

a)		Air
b)		Air and water
c)		Air and soil
d)		Air, water and soil

12. Acid rains are produced by

a)		Excess ${NO}_{2}$ and ${SO}_{2}$ from burning fossil fuels
b)		Excess production of ${NH}_{3}$ by industry and coal gas
c)		Excess release of carbon monoxide by incomplete combustion
d)		Excess formation of ${CO}_{2}$ by combustion and animal respiration

13. Pollutant of automobile exhausts that affects nervous system/produces mental diseases is

a)		Mercury
b)		Lead
c)		Nitrogen oxide
d)		Sulphur oxide

14. Ultraviolet radiations are lethal because of inactivation of

a)		Proteins, nucleic acids and pigments
b)		Minerals, air and water
c)		Carbohydrates, fats and vitamins
d)		Water, carbon dioxide and oxygen

15. Mark the national tree

a)		Ficus religiosa
b)		Mangifera indica
c)		Ficus bengalensis
d)		Azadirachta indica

16. Red Data Book contains information about

a)		Red coloured insects
b)		Red eyed birds
c)		Red coloured fishes
d)		Endangered plants and animals

17. Organisation responsible for maintaining Red Data Book is

a)		IUCN
b)		BNHS
c)		IBWL
d)		WWF

18. Wildlife is conserved

a)		In situ
b)		Ex situ
c)		Both A and B
d)		Selective hunting of predators

19. Which one is endangered species?

a)		Cuscuta
b)		Acacia nilotica
c)		Nepenthes
d)		Both B and C

20. Animal species protected in Kaziranga National Park is

a)		Panthera leo
b)		Rhinoceros unicornis
c)		Panthera tigris
d)		Macaca mulatta

21. A species restricted to a given area is

a)		Endemic species
b)		Allopatric species
c)		Sympatric species
d)		Sibling species

22. Kanha National Park is located in

a)		Assam
b)		Rajasthan
c)		Uttar Pradesh
d)		Madhya Pradesh

23. Breeding place of Flamingo (Hansawar) in India is

a)		Chilka Lake
b)		Sambar Lake
c)		Rann of Kutch
d)		Ghana Vihar

24. First national park of India is

a)		Kanha N.P
b)		Periyar N.P
c)		Corbett N.P
d)		Bandipur N.P

25. National Wildlife Protection Act was formulated during

a)		1972
b)		1974
c)		1976
d)		1978

26. Which animal has become extinct from India?

a)		Snow Leopard
b)		Hippopotamus
c)		Wolf
d)		Cheetah

27. Major reason for extinction of animals is

a)		Predation
b)		Pollution
c)		Habitat destruction
d)		Felling of trees

28. Animals like Mice, Lizards and Cockroach share their habitat with human dwellings. They are

a)		Inquilines
b)		Cultigens
c)		Transplants
d)		Humus

29. Ecofriendly method is

a)		Plantation of $C_{3}$ plants
b)		Plantation of Sugarcane
c)		Energy plantation
d)		None of the above

30. Nonconventional source of energy is

a)		Wood
b)		Biogas/Solar Energy
c)		Coal
d)		Petroleum

31. L.P.G is

a)		Low price gas
b)		Fossil fuel
c)		Low pressure gas
d)		Biogas

32. Soil erosion is prevented by

a)		Afforestation
b)		Increased bird population
c)		Overgrazing
d)		Removal of vegetation

33. Jhoom cultivation refers to

a)		Cultivation of Jamun trees
b)		Cultivation of medicinal plants by tribes
c)		Tribal method of shifting cultivation
d)		cultivation of terraces

34. Decreased rainfall in northern areas is due to

a)		Changes in sun
b)		Global phenomenon
c)		Deforestation in catchment areas
d)		Deforestation in evaporating area near equator

35. Silent valley has been preserved as it has

a)		Recreational value
b)		Valuable tinder
c)		Natural forest
d)		Rare plants and animals

36. Forest management is related to

a)		Silviculture
b)		Sericulture
c)		Apiculture
d)		Olericulture

37. The most stable ecosystem is

a)		Forest
b)		Mountain
c)		Desert
d)		Ocean

38. Stratification is more common in

a)		Tropical rain forest
b)		Deciduous forest
c)		Temperate forest
d)		Tropical savannah

39. Tropical forests are denser due to

a)		Wild animals
b)		High temperature and less rainfall
c)		Low temperature and excess rain
d)		High temperature and high rain

40. An ecosystem does not normally alter because it is in a state of

a)		Homeostasis
b)		Imbalance
c)		Deficient light
d)		Deficient components

41. Who proposed the term ecosystem?

a)		Odum
b)		Gardner
c)		Warming
d)		Tansley

42. Savannahs are

a)		Tropical rain forests
b)		Desert scrubs
c)		Grassland with scattered trees
d)		Dense forests with closed canopy

43. In a tree ecosystem, the pyramid of numbers is

a)		Upright
b)		Inverted
c)		Spindle like
d)		Variable

44. Pyramid of energy (in a forest/pond ecosystem) is

a)		Always inverted
b)		Always upright
c)		Spindle-shaped
d)		Both upright and inverted depending upon ecosystem

45. Path of energy flow in an ecosystem is

a)		Herbivores $\to$ Producers $\to$ Carnivores $\to$ Decomposers
b)		Herbivores $\to$ Carnivores $\to$ Producers $\to$ Decomposers
c)		Producers $\to$ Carnivores $\to$ Herbivores $\to$ Decomposers
d)		Producers $\to$ Herbivores $\to$ Carnivores $\to$ Decomposers

46. Which is correct food chain in grassland?

a)		Grass $\to$ Snake $\to$ Insect $\to$ Deer
b)		Grass $\to$ Wolf $\to$ Deer $\to$ Buffalo
c)		Bacteria $\to$ Grass $\to$ Rabbit $\to$ Wolf
d)		Grass $\to$ Insect $\to$ Frog $\to$ Snake

47. Mycorrhiza is an example of

a)		Symbiotic relationships
b)		Ectoparasitism
c)		Endoparasitism
d)		Decomposers

48. Rhizobium bacteria and root nodules of Pea have an association called

a)		Predation
b)		Parasitism
c)		Symbiosis
d)		Commesalism

49. Association between entomophilous flowers and pollinating agent is

a)		Commensalism
b)		Coevolution
c)		Mutualism
d)		Cooperation

50. An unrestricted reproductive capacity is called

a)		Birth rate
b)		Biotic potential
c)		Carrying capacity
d)		Fertility