Q31. ________________ word is derived from the Latin word “polluere” meaning “to soil” or “defile (contaminate)”.
Q32. Pollutants that break down into simpler, harmless substances naturally is called ___________________
Q33. Pollutants which cannot be broken down into simpler and harmless substances are called ___________________
Q34. Which of the following is non-biodegradable pollutants?
Q35. Which of the following is not the type of Pollution?
Q36. _________________ affect the alkailinity of the soil or the soil pH.
Q37. _______________ pollution is responsible for breathing problems in humans.
Q38. Which factor is responsible for land pollution?
Q39. Which factor is responsible for air pollution?
Q40. Carbon-dioxide gas trap and prevent the earth’s heat from escaping, leading to a global warming. This is called _______________
