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Water polluted by various human activities causes a number of water-borne diseases. Which of the following is not a water-borne disease?- Cholera
- Typhoid
- Asthma
- Dysentry
Correct Answer: (c) Asthma
Explanation: Asthma is an air-borne respiratory disease. It is caused due to an allergy to dust, pollen grains or any other allergen present in air.
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- Select the water-borne disease out of the followingCholeraTuberculosisDengueMalaria
- Name three diseases caused by polluted water.
- What are the different ways in which water becomes polluted by human beings ?
- Name any two diseases caused by drinking polluted water containing sewage.
- What is meant by polluted water.
- (a) What is meant by water pollution? What are the different ways in which water gets polluted?(b) State the harmful effects of water pollution.
- Which of the following is not a source of waste water?SewersHomesIndustriesHospitals
- To prevent seed-borne diseases, the seeds must be _______.
- Which of the following is not a way to conserve water?ReplaceReduceReuseRecycle
- Which of the following is usually not a water pollutant?sewagefertilizerfly ashpesticide
- Select the correct statement regarding water pollution.(A) Suspended impurities make water more transparent causing death of submerged aquatic plants.(B) Polluted water can cause diseases.(C) Water pollution increases dissolved oxygen level of water.(D) Agricultural runoff pollutes water into it.
- Causes of Water Scarcity
- Fill in the blanks in the following statements using words given in the box.[ air, handpumps, cholera, water, large, ground ]A very ______ number of our people defecate in the open. It may cause______ pollution and soil pollution. Both the surface water and ______ water get polluted______ water is the source for wells, tube wells and ______. Thus it becomes the most common route for ______ borne diseases like ______ , dysentery, etc.
- Which of the following is not a physical change?(a) Boiling of water to give water vapour(b) Melting of ice to give water(c) Dissolution of salt in water(d) Combustion of Liquefied Petroleum Gas (LPG)
- Write any two activities which require more than a bucket of water.
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