CSS :: Pollution

@ : Home > Forestry > Pollution

121.

The rdioactive fall out contaminates:

A.	Soil only	B.	Soil and water both
C.	Air and water both	D.	Air, soil and water

122.

A major component of gobar gas is:

A.	Ethane	B.	Methane
C.	Butane	D.	Ammonia

123.

A lake with an inflow of domestic sewage rich in organic waste may result in:

A.	Drying of the lake very soon due to algal bloom	B.	An increased production of fish due to lot of nutrients
C.	Increased population of aquatic food web organisms	D.	Death of fish due to lack of oxygen

124.

The first nuclear explosion over the city of Hiroshima took place in 1945 on:

A.	August, 8th	B.	August, 9th
C.	August, 6th	D.	August, 4th

125.

The first nuclear reactor disaster occurred at:

A.	Chernobyl	B.	TMI-2
C.	Narora	D.	Trombay

126.

The concentration of SO2 in the stmosphere is around:

A.	0.01 ppm	B.	0.001 ppm
C.	0.5 ppm	D.	0.75 ppm

127.

The nuclear installation should be at a place where there is no inhabitation atleast within:

A.	2 km	B.	4 km
C.	8 km	D.	10 km

128.

A hydrocarbon having the following number of carbon atoms doesn't exist freely in the atmosphere:

A.	C16	B.	C18
C.	Both (a) & (b)	D.	C10

129.

The 'Earth sumbmit' was held at:

A.	Geneva	B.	Islamabad
C.	Sydney	D.	Rio-de-Janeiro

130.

The percentage of air pollution caused due to smoke:

A.	10-15%	B.	15-20%
C.	20-25%	D.	2-5%