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प्रश्न
Excess of fluoride in drinking water causes:
पर्याय
Lung disease
Intestinal infection
Fluorosis
None of the above
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उत्तर
Fluorosis
संबंधित प्रश्न
Classify the given sources of water pollution as natural and manmade:
(1) domestic waste
(2) dead animals
(3) oil spills
(4) ashes released due to forest fires
Write a brief note on acid rain.
Explain the following :
(i) Eutrophication ;
(ii) Biomagnification
Answer the following question:
Name two human diseases caused due to water pollution.
Mention any two sources of water pollution.
Usage of chemical pesticides and fertilisers causes ________ pollution.
Contamination of water bodies by human activities is called ______ pollution.
A person was using water supplied by Municipality. Due to shortage of water he started using underground water. He felt laxative effect. What could be the cause?
BOD is measure of ______.
Study the picture given below and answer the question:
How does water get polluted?
