BIOLOGY M.C.Q (0.5 Marks)

The two gases making heighest relative contribution to the green house effect are

Which of the following protocols did aim for reducing emission of chlorofluorocarbons into the atmosphere?

Which of the following is a secondary pollutant?

Depletion of which gas in the atmosphere can lead to an increased incidence of skin cancers?

Which of the following plants is referred to as 'Ter-ror of Bengal'?

Which of the following is not the reason for global warming?

What will happen when fertilizer is added to fresh-water pond?

BOD of waste water is estimated by measuring the amount of :

Which is always present in photochemical smog?

Sanitary landfill was adopted as the substitute for :

The most adverse effect of radioactive pollutant is :

Which of the following exhibits biomagnification?

Carbon monoxide is a major pollutant of :

'World Conservation Day’ is observed on

Photochemical smog consists of :

pH of acid rain is below :

Which of the following causes biomagnification?

High amount of E.coli in water is an indicator of :

What will be the pH value of acid rain?

Which of the following is absent in photochemical smog?

Which one is aquatic weed in the following?

The thickness of ozone in a column of air from the ground to the top of atmosphere is measured in terms of?

Which is green house gas?

World Environment Day is celebrated on :

Photochamical Smog consists of?

The safe noise pollution pollution level fixed by WHO is :

Generally threshold of sound intensity for human is :

Lichen is indicator of

Factors of acid rain are :

Compressed Natural Gas (CNG) is :

Which gas is present predominantly in biogas?

World ozone day is celebrated on

Which of the following is not an air pollutant?

Chipko Movement is associated with :

Environment (Protection) Act came into force in?

Fluoride pollution mainly affect :

Chlorofluorocarbon are responsible for :

Common indicator organism of water pollution is :

Pollutant which causes acid rain is

A mutagenic pollutant is :

Blue baby syndrome results from :

Minimata disease is caused by :

Which one of the following is not a greenhouse gas?

Nuisance growth of aquatic plants and bloom forming algae in natural water is ganerally due to high concentrations of :

Among the following which one causes more indoor chemical pollution?

World's most problematic aquatic wed is :

Non-biodegradable pollutants are created by :

Which of the following material takes the longest time for biodegradation?

Which one of the following disease is not due to contamination of water?

Which one of the following impurities is easiest to remove from waste water?

Catalytic converters are fitted into automobiles to reduce emission of harmful gases. Catalytic converters change unburnt hydrocarbons into :

The major source of noise pollution, world wide is due to :

The loudness of a sound that a person can withstand without discomfort is about

The green scum seen in the fresh water bodies is :

Indicator of SO₂ pollution is :