Practice Test

Q1) Pick up the correct food chain Show Answer

Q2) In a food chain, the solar energy utilised by plants is only Show Answer

Q3) A high BOD value in aquatic environment is indicative of Show Answer

Q4) The largest ecosystem of the Earth is Show Answer

Q5) In the grassland, trees do not replace the grasses as a part of an ecological succession because of Show Answer

Q6) Which one of the following is the correct sequence of ecosystems in the order of decreasing productivity? Show Answer

Q7) Man can maintain an ecological balance in the biosphere by Show Answer

Q8) Polar bears are carnivores and prey on many arctic birds and fish. However, under natural conditions, no one found polar bears predating any penguin. This is because Show Answer

Q9) The term ecology was first used by Show Answer

Q10) What is the term applied to evolution of vegetation so that it becomes increasingly adapted to its environment? Show Answer

Q11) What is a complex of vegetation called when it undergoes no further change unless the climate changes perceptibly? Show Answer

Q12) A term biotype means Show Answer

Q13) In a chain of communities in a succession each community is a Show Answer

Q14) Which one of the following terms describes not only the physical space occupied by organism, but also its functional role in the community of organisms? Show Answer

Q15) A xeric succession occurs in Show Answer

Q16) An ecosystem is a/an Show Answer

Q17) The functioning of an ecosystem involves Show Answer

Q18) The Ecological pyramid that is always upright Show Answer

Q19) All components and individuals in an ecosystem are Show Answer

Q20) What forms the first trophic level in any ecosystem? Show Answer

Q21) The food web is Show Answer

Q22) The organisms who can synthesise their food by interacting with their environment are called Show Answer

Q23) The amount of energy as it passes on from one trophic level to other in an ecosystem Show Answer

Q24) In which of the following the maximum plant diversity is found? Show Answer

Q25) The ecological pyramid of numbers or biomass has a lesson for us that we should have ....... food habits. Show Answer

Q26) A balanced ecosystem is one in which the Show Answer

Q27) The term used for the conservation of ecosystems and natural habitats and the maintenance and recovery of viable populations of species in their natural surroundings is Show Answer

Q28) Which element is depleted most from the soil after a crop is harvested? Show Answer

Q29) The organisms which feeds on bodies of the dead organisms is Show Answer

Q30) In Nitrogen Cycle, soil nitrates are transformed into free nitrogen by Show Answer

Q31) Most of the desert plants bloom during night because Show Answer

Q32) The driving force of an ecosystem is Show Answer

Q33) Which one of following is a xerophytic plant? Show Answer

Q34) Abiotic component of our environment Show Answer

Q35) Hydrophonics is related to Show Answer

Q36) In dry regions, the leaf size of a tree becomes smaller. It is so to Show Answer

Q37) Which one of the following is a major constituent of biogas? Show Answer

Q38) Van Mahotsav is associated with Show Answer

Q39) The major combustible component of gobar (cow dung) gas is Show Answer

Q40) Xerophytes thrive in Show Answer

Q41) The minimum area of the land required to completely sustain the life of one person is called his Show Answer

Q42) The cycling of element in an ecosystem is called Show Answer

Q43) As an ecosystem, wetlands are useful for which of the following? Show Answer

Q44) Vermicompost is a/an Show Answer

Q45) Ozone layer is present mainly in Show Answer

Q46) 'Fixation of nitrogen' implies Show Answer

Q47) Atmospheric ozone layer which protects us from UV - B and C is getting depleted most by addition of Show Answer

Q48) Of the following which one pollutes the air of a big city? Show Answer

Q49) Ozone layer above the surface of Earth provides a shield against Show Answer

Q50) Acid rain is caused by the pollution of environment by Show Answer

Q51) Ground water in the Bengal basin is mostly contaminated by Show Answer

Q52) Heavy metal pollution of water is caused by Show Answer

Q53) Biodegradable wastes can usually be converted into useful substances with the help of Show Answer

Q54) Which of the following is biodegradable? Show Answer

Q55) Which one among the following groups of items contains only biodegradable items? Show Answer

Q56) Which one among the following industries produces the most non-biodegradable wastes? Show Answer

Q57) Gas released during Bhopal tragedy was Show Answer

Q58) The 1989, Helsinki declaration was on Show Answer

Q59) Endosulfan, a pesticide which was banned by the Supreme Court of India, is listed under Show Answer

Q60) The main aim of watershed management strategy of India is Show Answer

Q61) A high BOD value in aquatic environment is indicative of Show Answer

Q62) Which of the following is not one of the prime health risks associated with greater UV radiation through the atmosphere due to depletion of stratospheric ozone? Show Answer

Q63) SPM stands for Show Answer

Q64) The following pollutant is not contained in the vehicular exhaust emissions Show Answer

Q65) Cataract blinds at least 120 million people globally every year. What is its main cause? Show Answer

Q66) The massive hole in the ozone layer over the Antarctica was first discovered in Show Answer

Q67) Garbage can be put under four categories organic, toxic, soiled and recyclable. Of the organic waste, this forms an important part. Show Answer

Q68) Municipal waste is disposed in the open dumps, landfills, sanitary landfills, and is also burnt in large furnaces. This method is known as Show Answer

Q69) Which one of the following is a useful biological indicator of Sulphur-dioxide pollution? Show Answer

Q70) The Minamata incident, an example for environmental degradation, is due to which one of the following? Show Answer

Q71) Which one of the following is not required for the formation of photochemical smog? Show Answer

Q72) The 'pond bloom' of blue-green algae which causes the death of fishes and cattles produces the toxin of Show Answer

Q73) Eco-mark is given to an Indian product which is Show Answer

Q74) Workers of paint industry are exposed to which one of the following hazards? Show Answer

Q75) Which one of the following is responsible for blue baby syndrome? Show Answer

Q76) Which one of the following processes takes place in lakes during eutrophication? Show Answer

Q77) Food wrapped in newspaper is likely to get contaminated with Show Answer

Q78) Water pollution of a river is measured by Show Answer

Q79) Which of the following form of energy do not have the problem of pollution? Show Answer

Q80) The non-biotic pollutant of underground water is Show Answer

Q81) Lichens are the best indicator of Show Answer

Q82) Global warming is expected to result in Show Answer

Q83) Which sector is the largest emitter of greenhouse gases in India? Show Answer

Q84) Identify the non Green -House Gas (GHG) from the following Show Answer

Q85) Which one of the following plants is popularly grown along the road for absorbing vehicular pollutants? Show Answer

Q86) Carbon dioxide is called a green house gas because Show Answer

Q87) The concept of 'Green House Gases' was postulated by Show Answer

Q88) 'Bhopal gas Tragedy' 1984 is related to Show Answer

Q89) The Participate Matter (PM - 10) exhaled from the polluted atmosphere is often filtered out during the process of Show Answer

Q90) The pollutants which move downward with percolating ground water are called Show Answer

Q91) Which of the following is an endemic species? Show Answer

Q92) Endosulfan spray on cashew crop resulted in the pollution to the tune of tragedy in Show Answer

Q93) Expand the term IPCC Show Answer

Q94) Which of the following gas do not considered as polluting agent of air ? Show Answer

Q95) Carbon monoxide is harmful to human beings as it is Show Answer

Q96) India's first Carbon neutral district is ------- Show Answer

Q97) The lackluster agriculture growth since the new millennium is due to
a. Structural weakness
b. Low level of public investment
c.Unbalanced fertilizer use
d.small size of agricultural holding Show Answer

Q98) For which of the following Industries is licensing compulsory?
A. Cigarettes
B. Alcohol
C. Industrial explosives
D.Defence equipments Show Answer