Welcome to your environmentquiz15
1.
Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning? [2012]
- Smelting unitsÂ
- Pens and pencilsÂ
- PaintsÂ
- Hair oils and cosmeticsÂ
Select the correct answer using the codes given below:
2.
There is a concern over the increase in harmful algal blooms in the seawater of India. What could be the causative factors for this phenomenon? [2011]
- Discharge of nutrients from the estuaries.Â
- Run-off from the land during the monsoon.Â
- Upwelling in the seas.Â
Select the correct answer from the codes given below:
3.
Consider the following: [2011]
- Carbon dioxide.Â
- Oxides of nitrogen.Â
- Oxides of SulphurÂ
Which of the above is/are the emission/emissions from coal combustion at thermal power plants?
4.
Indiscriminate disposal of used fluorescent electric lamps causes mercury pollution in the environment. Why is mercury used in the manufacture of these lamps? [2010]
5.
Which bacterial strain, developed from natural isolates by genetic manipulations, can be used for treating oil spills? [2010]
6.
Assertion (A): Coal-based thermal power stations contribute to acid-rain. [2003] Reason (R): Oxides of carbon are emitted when the coal burns.
7.
Which one of the following is produced during the formation of photochemical smog? [2003]
8.
The water pollution in river is measured by the dissolved amount of: [1998]
9.
Which one of the following fuels causes minimum environmental pollution? [1995]
10.
Consider the following: [2023]
- AerosolsÂ
- Foam agentsÂ
- Fire retardantsÂ
- Lubricants.Â
In the making of how many of the above are hydrofluorocarbons used?
