Biology
Mention whether the following statements are True (T) or False (F).
(i) Soil pollution is largely localised.
(ii) Fly-ash and metallic ash are examples of urban domestic waste.
(iii) Chemical fertilisers may reach the rivers but do not harm the fish.
(iv) Biomedical waste may consist of both biodegradable and non-biodegradable waste.
(v) X-rays are a potential source of radiation pollution.
(vi) Unwanted disturbing sound, even if it is music next door, is noise.
(vii) People routinely working in noisy places are not much affected by noise.
Answer
(i) True
(ii) False
Corrected statement — Fly-ash and metallic ash are examples of urban industrial waste.
(iii) False
Corrected statement — Chemical fertilisers may reach the rivers and harm the fish due to eutrophication.
(iv) True
(v) True
(vi) True
(vii) False
Corrected statement — Even though people working in noisy places may appear to adapt, long-term exposure to noise can still negatively impact their health, well-being, and productivity.
Related Questions
Give two examples of gaseous air pollutants.
Mention whether the following statements are True (T) or False (F).
(i) Liquid kitchen waste alone constitutes the sewage.
(ii) Household detergents are safe and non-contributors to water pollution.
(iii) Industrial wastes mainly consist of chemical pollutants.
(iv) Thermal power plants give out a lot of hot waste water.
(v) Hot water discharged into water bodies hardly affects the fish and other aquatic life.
Mention whether the following statements are True (T) or False (F).
(i) Diseases like cholera and jaundice are the results of soil pollution.
(ii) CO2 and methane are directly contributing to global warming.
(iii) Erosion of ancient monuments and statues is caused by acid rain which itself is the result of gaseous pollution.
(iv) Use of unleaded petrol and Compressed Natural Gas (CNG) in automobiles is one of the methods of abatement of gaseous and particulate air pollution.
Which of the following is an example of a green-house gas ?
- Sulphur dioxide
- Methane
- Oxygen
- Nitrogen