Question 11
The term “water-pollution” can be defined in several ways. Which of the following statements does not give the correct definition?
(a) The addition of undesirable substances to water-bodies
(b) The removal of desirable substances from water-bodies
(c) A change in pressure of the water bodies
(d) A change in temperature of the water bodies
Question 11
The term “water-pollution” can be defined in several ways. Which of the following statements does not give the correct definition?
(a) The addition of undesirable substances to water-bodies
(b) The removal of desirable substances from water-bodies
(c) A change in pressure of the water bodies
(d) A change in temperature of the water bodies
(c) A change in pressure of the water bodies
An undesirable change in the physical, biological or chemical qualities or water that adversely affects the aquatic life and makes the water unfit for use, is called water pollution. Alteration of physical and chemical properties of water including the change in pH, electrical conductivity, temperature, and eutrophication causes water pollution. Change in pressure of water bodies doesn’t cause water pollution.
(c) A change in pressure of the water bodies
An undesirable change in the physical, biological or chemical qualities or water that adversely affects the aquatic life and makes the water unfit for use, is called water pollution. Alteration of physical and chemical properties of water including the change in pH, electrical conductivity, temperature, and eutrophication causes water pollution. Change in pressure of water bodies doesn’t cause water pollution.
