|
State the cause of depletion of ozone layer
|
|
1
|
576
|
September 3, 2016
|
|
How is snow-blindness caused in humans?
|
|
0
|
2432
|
September 3, 2016
|
|
How does Jhum cultivation promote deforestation?
|
|
0
|
2194
|
September 3, 2016
|
|
Mention the cause of thinning of ozone layer
|
|
0
|
571
|
September 3, 2016
|
|
Write the unit used for measuring ozone thickness
|
|
0
|
1006
|
September 3, 2016
|
|
State the purpose of signing the Monsltreal Protocol
|
|
0
|
415
|
September 3, 2016
|
|
Name the Green House gases that contribute to total global warming
|
|
0
|
519
|
September 3, 2016
|
|
Why are catalytic converters recommended for vehicles?
|
|
1
|
3027
|
September 3, 2016
|
|
How does an electrostatic precipitator work to remove particulate pollutant released from the thermal power plants?
|
|
0
|
1737
|
September 3, 2016
|
|
Mention the major causes of air pollution in metro cities. Write any three ways by which it can be reduced
|
|
0
|
2491
|
September 3, 2016
|
|
Mention how e-waste is produced and disposed off.Write the solutions for its treatment
|
|
0
|
2103
|
September 3, 2016
|
|
State the function of catalytic converter in an automobile
|
|
0
|
1949
|
September 3, 2016
|
|
What is polyblend?Why did the plastic manufacturers think of producing it ? Write its usefulness
|
|
0
|
3737
|
September 3, 2016
|
|
How did Ahmed Khan, plastic sacks manufacturer from Bangalore, solve the ever-increasing problem of accumulating plastic waster?
|
|
0
|
774
|
September 3, 2016
|
|
Name any two sources of e-wastes and write two different ways for their disposal
|
|
0
|
2317
|
September 3, 2016
|
|
Mention information that the health workers derive by measuring BOD of a water body
|
|
0
|
1579
|
September 3, 2016
|
|
Why is sewage water treated until the BOD is reduced ? Give a reason
|
|
0
|
4483
|
September 3, 2016
|
|
How do algal blooms affect the life in water bodies?
|
|
0
|
1542
|
September 3, 2016
|
|
Why should motor vehicles equipped with catalytic convertors use unleaded petrol?
|
|
0
|
481
|
September 3, 2016
|
|
Inspite of being non-polluting why are there great apprehensions in using nuclear energy for generating electricity?
|
|
0
|
834
|
September 3, 2016
|
|
State the cause of Accelerate Eutrophication
|
|
0
|
740
|
September 3, 2016
|