Biodiversity and Conservation and Environmental Issues

sleeplessness

increased heartbeat

psychological stress

all of these.

3 million

5 million

7 million

9 million

industrial effluents

agricultural discharges

domestic sewage

all of these

Transportation

Smoke

Vehicle emissions

Industrial and domestic wastes

Biological oxygen demand

Eutrophication

Greenhouse effect

Biomagnification

Delimitation of horn-free zone around hospitals and schools.

Permissible sound-levels of crackers and of loudspeakers.

Setting the timing after which loudspeakers cannot be played.

All of these

ICFRE

IUCN

UNEP

WWF

conservation of wildlife in their natural habitat

conservation of wildlife outside their natural habitat

conservation of wild life in cultural environment

all of these.

gaseous pollutants

biological pollutants

heavy metals

all of these.

Photosynthesis

Burning of fossil fuels

Discharging sewage into water bodies

All of these

Algal bloom

Cultural eutrophication

Terror of Bengal

Ecological sanitation

milligram of oxygen per litre of water

milligram of oxygen per litre of mercury

millilitre of oxygen per milligram of water

millilitre of oxygen per milligram of mercury.

Cutting trees for timber and firewood

Conversion of forests to agricultural land

Practice of Jhum Cultivation

All of these

co-extinction

habitat fragmentation

over exploitation

alien species invasion

Destruction of habitat

Invasion by alien species

Keeping animals in zoological parks

Over-exploitation of natural resources