Biology
Fill in the blanks:
(i) Rubber particles and dust raised by running motor vehicles are examples of …………… pollutants.
(ii) Too frequent exposure to …………… in a medical diagnostic technique may damage chromosomes.
(iii) Thermal power plants give out a lot of …………… waste water.
(iv) Sewage is a liquid waste from ……………
Answer
(i) Rubber particles and dust raised by running motor vehicles are examples of particulate pollutants.
(ii) Too frequent exposure to X-ray in a medical diagnostic technique may damage chromosomes.
(iii) Thermal power plants give out a lot of hot waste water.
(iv) Sewage is a liquid waste from domestic activities.
Related Questions
Name the following pollutants:
(i) A pollutant which is mainly responsible for causing acid rain.
(ii) Any two chemicals leading to the formation of ozone holes.
Match the items in column I with the closely related ones in column II.
Column I Column II (i) Chlorofluocarbons (CFCs) (a) Global warming (ii) Flyash (b) Biodegradable (iii) Cow dung (c) Nuclear radiation pollutant (iv) CO2 and methane (d) Acid rain (v) Sulphur dioxide (e) Industrial waste (vi) Iodine - 131 (f) Ozone depletion Write the full forms of each :
(a) DDT
(b) ODF
(c) CFCs
(d) CNG
(e) LPG
Give two examples of :
(a) Biodegradable wastes
(b) Non-biodegradable wastes
(c) Particulate pollutants
(d) Greenhouse gases
(e) Radioactive pollutants