(a) Pushyabhuti Dynasty
(b) Barman Dynasty
(c) Sen Dyanasty
(d) Pal Dynasty
Q2. ‘Daskumar Charitam’ was composed by-
(a) Surdas
(b) Dandin
(c) Tulsidas
(d) Kalidas
Q3. What was the focus of Rachel Carson’s book Silent Spring in 1962 ?
(a) Economic and social chaos resulting from a computer virus under a society with an
over-concentration on technology and computers
(b) Rapid global warming resulting from fossil fuel burning and deforestation
(c) The potential for resource depletion leading to global poverty and starvation from
increasing population growth
(d) The potential ecological devastation of pesticides such as DDT in the ecosystem
Q4. Which of the following is not one of the major environment problems resulting from human interference in the nitrogen cycle ?
(a) Eutrophication
(b) Nitrous oxide release increases global warming
(c) Increased acid rain
(d) Stratospheric ozone depletion
Q5. Which of the following is not a major greenhouse gas?
(a) Carbon Dioxide
(b) Methane
(c) Calcium Carbonate
(d) Water vapour
Q6. The 1987 Montreal Protocol was signed for which of the following reasons ?
(a) To phase out the use of CFC’s, found to be causing depletion of the ozone layer
(b) To ban nuclear testing in tropical oceans
(c) To begin converting from fossil fuel use to more renewable energy sources to reduce
the anthropogenic greenhouse effect
(d) To stop the global trade in products made from endangered tigers
Q7. Approximately what proportion of the global land surface is used for agriculture and grazing by the world’s 6 billion people ?
(a) Three quarters
(b) One tenth
(c) One third
(d) One eightieth
Q8. Which of the following is not a major positive feedback mechanism in which the activity of humans to increase global climate temperatures leads to an even further increase ?
(a) Tropical deforestation causes warming and drying so that remaining forests begin to
decline
(b) Global warming causes snow to melt in polar regions and therefore increases global
albedo
(c) Global warming causes increased rainfall, plant growth and photosynthesis
(d) Global warming causes increased CO2 release from biomass decomposition
Q9. What is the primary reason for targeting ‘biodiversity hotspots’ for conservation ?
(a) To protect all areas of threatened species would not allow for new species to develop
(b) The number of species threatened far exceeds our capacity to protect them and we can therefore only concentrate on areas of highest species diversity
(c) They are areas where people do not live and conservation would therefore not be effecting the economic development of the area
(d) They are the only areas where species are seriously threatened in the world
Q10.Which of the following is not one of the prime he risks associated with greater UV radiation through atmosphere due to depletion of stratospheric ozone
(a) Increased liver cancer
(b) Increased skin cancer
(c) Damage to eyes
(d) Reduced immune system
Solutions
S1. Ans.(d)
S2. Ans.(b)
S3. Ans.(c)
S4. Ans.(d)
S5. Ans.(c)
S6. Ans.(a)
S7. Ans.(c)
S8. Ans.(c)
S9. Ans.(b)
S10. Ans.(b)