Environmental pollution

Pollen grains is a pollutant

• TRUE

• FALSE

A substance, which causes pollution, is known as which of the following?

• Irritant

• Carcinogen

• Pollutant

• Polluting element

Identify the degradable pollutant from the following.

• Chemicals

• Metals

• Discarded vegetables

• Plastic

What is an easily identified source of pollution called as?

• Specific source

• Point source

• Non-point source

• Polluting source

What does the addition of phosphate fertilizers into water lead to?

• Increased algae growth

• Decreased algae growth

• Increased growth of decomposers

• Nutrient enrichment

Water should be tested for fluoride ion concentration for drinking purposes.

• True

• False

The excess of which ion in drinking water can lead to blue baby syndrome?

• Aluminum ion

• Copper ion

• Sulphate ion

• Nitrate ion

Pick out the method employed for destroying large amounts of industrial wastes.

• Burning them along with garbage in open bins

• Dumping them in landfills

• Transferring them to other industries

• Controlled incerination

Which of the following element make e-waste hazardous in nature?

• Lead

• glass

• Plastic

• Iron

Landfills are engineered for liquid waste.

• true

• false