In 1984, the Bhopal gas tragedy took place because methyl isocyanate

Blood analysis of a patient reveals an usually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct? The patient has been inhaling polluted air containing unusually high content of

The noise produced in office is normally at the level of

Minamata disease was caused due to the consumption of

Expand BOD

Identify the correct matched pair

Photochemical smog pollution does not contain

Pollution from animal excreta and organic waste from kitchen can be most profitably minimized by

Which one of the following is not a bioindicator of water pollution?

A lake near a village suffered heavy mortality of fishes within a few days. Consider the following reasons for this.
(a) lots of urea and phosphate fertilizers were used in the crops in the vicinity
(b) the area was sprayed with DDT by an aircraft
(c) the lake water turned green and stinky
(d) phytoplankton populations in the lake declined initially thereby greatly reducing photosynthesis
Which two of the above were main reasons of fish mortality in the lake?

India has more than 50,000 starins of rice. Mention the level of biodiversity it reprasents.

The Amazon rain forest is referred to as 'the lungs of the planet'. Mention any one human activity which causes loss of biodiversity in this region.

What is the difference between endemic and exotic species?

Expand WPSI.

What do you mean by e-waste?

Why should biodiversity be conserved? List any two eithical arguments in its support.

Differentiate between in situ and and ex situ approaches of  conservation of biodiversity?

What is the significance of the slope of regression in a species-area relationship?

Write, what was the percentage of forest cover of India at the beginning and at the end of twentieth century.How different it is from the one recommended by National Forest Policy?

Alien species are highly invasive and are a threat to indigenous species. Substantiate this statement with any three examples.

Explain giving one example,how co-extinction is one of the causes of loss of biodiversity.List the three other causes also ( without description).

What is photochemical smog? How does smog affect the biological world? 

'Determination of Biological Oxygen Demand (BOD) can help in suggesting the quality of a water body'.Explain.

Describe in detail the species-area relationship of biodiversity

Elaborate how invasion by an alien species reduce diversity of an area