Environmental Sciences Quiz

The  breaking  of  the  biomass from the  slime layer  in conventional  filter is  called :-

Acid rain contains high level of:-

The lowest layer of the atmosphere is known as:-

Which disinfection technique  does not cause  organochlorine  synthesis:-

There are ____________ types of rocks:-

In a population , unrestricted reproductive capacity is called as:-

Which   pollutants  is  the major   contributor  to  photochemical smog -

Color of ozone molecule  is;-

The  removal of  BOD  is  independent of  the   loading  conditions  in filtration process :-

Pesticides  also  contribute  to air pollution along with  polluting   underground  reservoirs ;-

The  different  age group of  a  population  can be represented  in the  form  of  a  graph  called 

NDUV monitors  use  a  reference  gas to  analyse  other  gases ;-

A great deal of indoor air pollution comes from:-

How many layers does earth's atmosphere have:-

Troposphere  is   thinner  at the equator  than at the poles :-

The chief atmospheric layer present near the surface of the earth is:-

The  cutting  down of  trees   is  termed as :-

Troposphere contains  the ozone layer:

The  part of  the plant  that  evaporate  water is  ;-

Which disease is not caused by water pollution:-

What are the days and nights of equal length all year long:-

__________ element had guided the earlier navigators to keep them on right path:-

The  detention  period  of  a secondary  clarifier is ;-

Evaporation is a ______________ process:-

How  much of  sun's  radiation  energy  is  absorbed  by the  greenhouse  gases to warm  the planet:-