Environmental I...

The neurotoxic form of Mercury which can be directly absorbed by fishes :

Oil spills prevent oxygenation of water so they are :

That species which is found in highest concentration within a polluted water reservoir is called :

Which of the following is a wrong matched pair

Read the following statements:
i. Based on emission, there are point and diffusion sources of water pollution.
ii. Fertilisers are example of point sources of water pollution.
iii. Industrial discharge pipes are examples of diffusion sources of water pollution.

Low BOD will be characteristic feature of :

Water bodies and aquatic flora will be badly affected by :

If DDT content in the water of a lake is found to be 0.004 ppm then pelicans of that area will have:

Effects of thermal pollution of water include :
a) increased BOD
b) increased toxicity of discharged chemicals
c) decreased microbial activity