(Papers) : IIT Madras  HSEE Papers-2018 (Ecology and Environment)

Q.127 Which of the following help in the successful regulation of environmental equilibrium?
[A] Oceans
[B] Forests
[C] Rivers 
[D] All of the above

Q.128 The annual growth rate of  human population is calculated If P1 is population size in the previous census and P2 is the population size in the present census, then N is _____.
[A] Number of years since the first census
[B] Number of years between first known census and present census
[C] Number of years between the two censuses
[D] None of the above

Q.129 Which of the following industries is responsible for creating the largest environmental disaster zones?
[A] Cement 
[B] Leather 
[C] Automobile
[D] Mining

Q.130 Bauxite is the name used for the ore of the following metals. Identify the correct answer from the given options.
[A] Iron
[B] Gold
[C] Platinum 
[D] Aluminium

Q.131 The highest amount of mean annual precipitation received by different biomes is given in this list of options. Identify the correct descending order.
[A] Grassland → Coniferous forest → Tropical forest → Desert
[B] Tropical forest → Coniferous forest → Grassland → Desert
[C] Coniferous forest → Grassland → Tropical forest → Desert
[D] Tropical forest → Grassland → Coniferous forest → Desert

Q.132 Interspecific interactions arise from the interaction of population of two different species, which could be beneficial (+), detrimental (-), or neutral (0) to one or both the species. Then ' (-)' ' (-)' population interaction is called _____.
[A] Competition
[B] Parasitism
[C] Mutualism 
[D] Predation

Q.133 Mechanism of soil degradation where reduction in total and biomass carbon takes place is referred to as _____.
[A] Mechanical process
[B] Biological process
[C] Chemical process
[D] Physical process

Click Here for Official PDF

Courtesy: CBSE