Environment & Ecology
72 questions available
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Q1.Main cause of smog in Lahore is?
Correct Answer: A
Smog in Lahore is mainly caused by vehicular pollution combined with industrial emissions.
Q2.All are physical pollutants except?
Correct Answer: B
Soot is a particulate/chemical pollutant, unlike heat, radiation, and sound which are physical pollutants.
Q3.The first trophic level refers to:
Correct Answer: B
Green plants (producers) occupy the first trophic level in a food chain.
Q4.Sustainable method to avoid urban flooding is?
Correct Answer: B
Q5.When Species disappear from specific ecosystem is called?
Correct Answer: A
Q6.Which of the following is type of Great Pacific Garbage Patch?
Correct Answer: B
Q7.Solvation and the absorption of rain water is called
Correct Answer: A
Q8.Final stage in ecosystem?
Correct Answer: A
Q9.Smog, NO2, SO2 and Dust are the sources of?
Correct Answer: A
Q10.Burning of Fossil Fuels results in?
Correct Answer: A
Q11.The final, stable and self sustaining community of ecological succession:
Correct Answer: A
Q12.How much forest cover should ideally be required for environmental stability?
Correct Answer: A
Q13.Two and many populations of species called?
Correct Answer: A
Q14.Droughts leads to wildfires due to?
Correct Answer: D
Q15.Which gas maintains the temperature in environment?
Correct Answer: C
Q16.Photochemical smog does not contain which of the following?
Correct Answer: A
Q17.Ozone layer safe earth from which of the following rays
Correct Answer: A
Q18.20 to 25 percent wind erosion caused by:
Correct Answer: C
Q19.When the last member of a particular species dies, the species is said to be __.
Correct Answer: C
Q20.Which term refers to a species that has no living individuals remaining?
Correct Answer: D