Q. Exhaust motor vehicle is the main source of

View solution

Q. If heat radiated from the Earths surface is retained, the outcome will be

View solution

Q. Carbon monoxide (CO) causes

View solution

Q. Gaseous pollutants may be carried to other countries to

View solution

Q. Gaseous pollutants include

View solution

Q. Death of fish in lakes and rivers in some countries has been attributed to

View solution

Q. Biological decay, forest fires and volcanic eruptions are example of

View solution

Q. Aluminum (Al) salts may become fatal to fish if allowed to react with

View solution

Q. Arsenic is an example of

View solution

Q. Chemical spraying in agriculture may contaminate

View solution

Q. Cadmium is an example of

View solution

Q. Compounds which tend to accumulate in bodies are

View solution

Q. Inorganic wastes may include

View solution

Q. People may become blind due to

View solution

Q. If water containing DDT (dichloro-diphenyl-trichloroethane: C₁₄H₉Cl₅) is fed upon by cattle, it will

View solution

Q. In terms of tolerance range for oxygen (O₂), Tubifex worms and fish are

View solution

Q. Along the trophic level, in a food chain, the insecticide amount

View solution

Q. DDT stands for

View solution

Q. DDT (dichloro-diphenyl-trichloroethane: C₁₄H₉Cl₅) is a form of

View solution

Q. In tubifax worms, the tolerance range for oxygen

View solution