Heavy Metal Poisoning

Q.

Disease caused by eating fish found in water contaminated with the industrial waste of mercury:

1. Osteosclerosis

2. Minimata disease

3. Bright's disease

4. Hashimoto's disease

Q.

Which one of the following is not correct about DDT?

1. Bacteria can undergo biological magnification and DDT can be degraded by living cells
2. Bacteria can be degraded by living cells and DDT cannot be degraded by living cells
3. Bacteria can undergo multiplication and DDT is degraded by living cells
4. bacteria can undergo biological magnification and DDT cannot be degraded by living cells

Q. State whether true or false:
Accumulated heavy metals cannot be metabolised by organisms.

1. False
2. True

Q. Regarding the assertion and reason, please select the right option.
Assertion [A]: The clear looking water from a well contains high amount of minerals.
Reason [R]: Water impurities are always microscopic or submicroscopic; clear water need not be potable water.

1. Both A and R are correct and R explains A
2. Both A and R are correct and R does not explain A
3. A is correct and R is incorrect
4. Both A and R are incorrect

Q. Fluoride pollution mainly affects

1. Heart
2. Teeth
3. Kidney
4. Brain

Q. Which one of the following pairs is mismatched?

1. Nuclear power – radioactive wastes
2. Solar energy – green house effect
3. Fossil fuel burning – Release of CO₂
4. Biomass burning – Release of CO₂

Q. Select the water pollutant that is common in West Bengal and Bangladesh.

1. Arsenic
2. Fluorine
3. Sodium
4. Lead

Q.

Accumulated heavy metals cannot be metabolised by organisms.

1. True
2. False

Q. Which one of the following pairs is mismatched?

1. Biomass burning – Release of CO₂
2. Fossil fuel burning – Release of CO₂
3. Nuclear power – radioactive wastes
4. Solar energy – green house effect

Q. A village is affected by numerous cases of fluorosis. Doctors treating this patient learn that the majority of the drinking water for the village is drawn from a well. The water from the well looks crystal clear. However, the doctor sends the water for chemical testing.
Regarding this an assertion and reason are made by the doctor. Please select the right option.
Assertion [A]: The clear looking water from the well contains high amount of minerals, especially fluorine.
Reason [R]: Water impurities are always microscopic or submicroscopic; clear water need not be potable water.

1. Both A and R are correct and R explains A
2. Both A and R are correct and R does not explain A
3. A is correct and R is incorrect
4. Both A and R are incorrect