10 solutions available
Question 2Distinguish between the following pairs:(a) Sewage and effluents(b) Biodegradable and Non-biodegradable waste(c) Smoke and smog
Question 9The energy content of X-rays is usually measured in:ProtonProtiumPhotonNone of these
Question 10Which of the following is a radioactive pollutant ?Iodine-131Iodine-113Iodine-313Cobalt-16
Question 1List two major harmful effects of each of the following:(i) Rivers contaminated with sewage.(ii) Too much gaseous exhausts containing CO2...
Question 3The following picture depicts a certain phenomenon.(i) Name the phenomenon and explain it.(ii) Enlist the sources that are responsible for...
Question 4The picture below shows a campaign recently started by the Indian Government.(i) When was this campaign launched ?(ii) Mention the chief...
Question 5The figure given below shows a kind of pollution. Study the figure and answer the following questions.(a) Define the kind of pollution...
Question 6Study the figure shown here and answer the following questions.(a) Identify the kind of pollution and define it.(b) Mention four main...
Question 7Study the pictures given below of the two main categories of wastes and answer the questions:(i) Identify the categories of wastes in (A)...
Question 8Pollution is on the rise due to a rapid increase in the number of automobiles and buildings. All of these release a large amount of harmful...