Which one of the following is a wrong statement?
[A] Most of the forests have been lost hi tropical areas
[B] Ozone in upper part of atmosphere is harmful to animals
[C] Greenhouse effect is a natural phenomenon
[D] Eutrophication is a natural phenomenon in freshwater bodies
Measuring Biochemical Oxygen Demand (BOD) is a method used for:
[A] Estimating the amount of organic matter in sewage water
[B] Working out the efficiency of oil driven automobile engines.
[C] Measuring the activity of Saccharomyces cerevisae in producing curd on a commercial scale.
[D] Working out the efficiency of R.B.Cs. about their capacity to carry oxygen.
Kyoto Protocol was endorsed at:
Global warming can be controlled by:
[A] Reducing deforestation, cutting down use of fossil fuel
[B] Reducing reforestation, increasing the use of fossil fuel
[C] Increasing deforestation, slowing down the growth of human population
[D] Increasing deforestation, reducing efficiency of energy usage.
The Air Prevention and Control of Pollution Act came into force in:
The zone of atmosphere in which the ozone layer is present is called:
A scrubber in the exhaust of a chemical industrial plant removes:
[A] Gases like sulphur dioxide
[B] Particulate matter of the size 5 micrometer or above
[C] Gases like ozone and methane
[D] Particulate matter of the size 2.5 micrometer or less
Rachel Carson’s famous book “Silent Spring” is related to:
[A] Pesticide pollution
[B] Noise Pollution
[C] Population explosion
[D] Ecosystem management
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?
[A] Increased skin caner
[B] Reduced Immune System
[C] Damage to eyes
[D] Increased liver cancer
The UN conference of Parties on climate change in the year was held in:
[B] South Africa
The UN conference of Parties on climate change in the year was held at:
Acid rain is caused by increase in the atmospheric concentration of:
[A] SO3and CO
[B] CO2and CO
[C] O3 and dust
[D] SO2and NO2
Increase in concentration of the toxicant at successive trophic levels is known as:
[A] Bio deterioration
[C] Biogeochemical cycling
[D] Bio magnification
Which of the following are most suitable indicators of SO pollution in the environment?
Eutrophication of water bodies leading to killing of fishes is mainly due to non-availability of:
[B] Essential minerals