318596
A lake with an inflow of domestic sewage rich in organic waste may result in
1 drying of the lake very soon due to algal bloom
2 an increase production of fish due to lot of nutrients
3 death of fish due to lack of oxygen
4 increased population of aquatic food web organisms
Explanation:
Conceptual Questions
CHXI14:ENVIRONMENTAL CHEMISTRY
318597
Statement A : Heavy metals such as cadmium, mercury, nickel etc. are water pollutants. Statement B : Heavy metals are not harmful to humans.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
Explanation:
Heavy metals like cadmium, nickel, mercury are water pollutants which comes from industries and chemical factories. They are major water pollutants and are harmful to humans as they can damage kidneys, liver etc.
CHXI14:ENVIRONMENTAL CHEMISTRY
318598
Biodegradable pollutant is
1 Sewage
2 Mercury
3 Plastic
4 Asbestos
Explanation:
Sewage is a biodegradable pollutant as it can be decomposed by micro - organisms either by nature or by suitable treatment. The other options are non - biodegradable pollutants.
CHXI14:ENVIRONMENTAL CHEMISTRY
318599
A process that uses micro-organisms to convert harmful industrial wastes to less toxic or nontoxic compounds is
318596
A lake with an inflow of domestic sewage rich in organic waste may result in
1 drying of the lake very soon due to algal bloom
2 an increase production of fish due to lot of nutrients
3 death of fish due to lack of oxygen
4 increased population of aquatic food web organisms
Explanation:
Conceptual Questions
CHXI14:ENVIRONMENTAL CHEMISTRY
318597
Statement A : Heavy metals such as cadmium, mercury, nickel etc. are water pollutants. Statement B : Heavy metals are not harmful to humans.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
Explanation:
Heavy metals like cadmium, nickel, mercury are water pollutants which comes from industries and chemical factories. They are major water pollutants and are harmful to humans as they can damage kidneys, liver etc.
CHXI14:ENVIRONMENTAL CHEMISTRY
318598
Biodegradable pollutant is
1 Sewage
2 Mercury
3 Plastic
4 Asbestos
Explanation:
Sewage is a biodegradable pollutant as it can be decomposed by micro - organisms either by nature or by suitable treatment. The other options are non - biodegradable pollutants.
CHXI14:ENVIRONMENTAL CHEMISTRY
318599
A process that uses micro-organisms to convert harmful industrial wastes to less toxic or nontoxic compounds is
318596
A lake with an inflow of domestic sewage rich in organic waste may result in
1 drying of the lake very soon due to algal bloom
2 an increase production of fish due to lot of nutrients
3 death of fish due to lack of oxygen
4 increased population of aquatic food web organisms
Explanation:
Conceptual Questions
CHXI14:ENVIRONMENTAL CHEMISTRY
318597
Statement A : Heavy metals such as cadmium, mercury, nickel etc. are water pollutants. Statement B : Heavy metals are not harmful to humans.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
Explanation:
Heavy metals like cadmium, nickel, mercury are water pollutants which comes from industries and chemical factories. They are major water pollutants and are harmful to humans as they can damage kidneys, liver etc.
CHXI14:ENVIRONMENTAL CHEMISTRY
318598
Biodegradable pollutant is
1 Sewage
2 Mercury
3 Plastic
4 Asbestos
Explanation:
Sewage is a biodegradable pollutant as it can be decomposed by micro - organisms either by nature or by suitable treatment. The other options are non - biodegradable pollutants.
CHXI14:ENVIRONMENTAL CHEMISTRY
318599
A process that uses micro-organisms to convert harmful industrial wastes to less toxic or nontoxic compounds is
318596
A lake with an inflow of domestic sewage rich in organic waste may result in
1 drying of the lake very soon due to algal bloom
2 an increase production of fish due to lot of nutrients
3 death of fish due to lack of oxygen
4 increased population of aquatic food web organisms
Explanation:
Conceptual Questions
CHXI14:ENVIRONMENTAL CHEMISTRY
318597
Statement A : Heavy metals such as cadmium, mercury, nickel etc. are water pollutants. Statement B : Heavy metals are not harmful to humans.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both statements are incorrect.
Explanation:
Heavy metals like cadmium, nickel, mercury are water pollutants which comes from industries and chemical factories. They are major water pollutants and are harmful to humans as they can damage kidneys, liver etc.
CHXI14:ENVIRONMENTAL CHEMISTRY
318598
Biodegradable pollutant is
1 Sewage
2 Mercury
3 Plastic
4 Asbestos
Explanation:
Sewage is a biodegradable pollutant as it can be decomposed by micro - organisms either by nature or by suitable treatment. The other options are non - biodegradable pollutants.
CHXI14:ENVIRONMENTAL CHEMISTRY
318599
A process that uses micro-organisms to convert harmful industrial wastes to less toxic or nontoxic compounds is
