Which of the following statements is correct

• Catalytic converter can separate particulate matter of diameter less than 2.5 micrometers.

• Histones are acidic in nature that forms core for DNA packaging.

• Lactobacillus is not present in dough used in idli formation.

• Template with polarity 5'$\to$ 3' has continuous DNA replication.

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

• ozone

• ammonia

• methane

• methane

3.

Joint Forest management Concept was introduced in India during

• 1970s

• 1980s

• 1990s

• 1990s

A river with an inflow of domestic sewage-rich in organic waste may result in

• increased population of aquatic food web organism

• an increased production of fish due to biodegradable nutrients

• death of fish due to lack of oxygen

• death of fish due to lack of oxygen

Kyoto Protocol was endorsed at 

• CoP-3

• CoP-5

• Cop-6

• Cop-6

Global warming can be controlled by

• Reducing deforestation, cutting down use of fossil fuel

• Reducing reforestation, increasing the use of fossil fuel

• Increasing deforestation, slowing down the growth of human population

• Increasing deforestation, slowing down the growth of human population

The air prevention and control of pollution Act came into force in

• 1975

• 1981

• 1985

• 1985

The UN conference of Parties on climate change in the year 2012 was held at

• Durban

• Doha

• Lima

• Lima

Increase in concentration of the toxicant at successive tropic levels is known as 

• biomagnification

• biodeterioration

• biotransformation

• biotransformation

Acid rain is caused by increase in the atmospheric concentration of