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(a) Give two examples of diseases which can be spread by contaminated drinking water.
(b) How can the spread of such diseases be prevented?
(a) Typhoid and cholera can be spread by contaminated water.
(b) The spread of such diseases can be stopped by (i) Effective disposal of sewage,
(ii) Purification of drinking water.
Explain about the Serengeti Ecosystem? The Serengeti ecosystem, one of the most stunning biological communities in the world, was devastated by the introduction of rinderpest f
Q. Primary prevention of diabetes mellitus? Approaches to Prevention: There are various approaches to prevention. Four levels of prevention related to different stages of a di
What do biomass pyramids represent? The Biomass pyramids represent the sum of the masses of the individuals that participate in each trophic level of a food chain.
Basic characters of vertebrate classes
Define Regents for Determination of Inorganic Phosphorus? 1. Trichloroacetic acid (10%) - Dissolve 100 g of high grade crystalline acid in distilled water and dilute to 1 Litre
Fredrick Griffith published a series of experiments that collectively were dubbed "The Transforming Principle" in 1928. Which of the following stopped him from being able to declar
List the benefits of LSM. Life style modification helps in the following ways: - Reduction of weight - Good sugar control - Good blood pressure control - Reduction
Define Keratomalacia - Micronutrient Deficiencies? This is a condition of rapid destruction and liquefaction of full thickness of cornea, leading lo prolapse of iris, resulting
Cohesion-adhesion theory describes the properties of water which help move it through the plant. Cohesion is the property of water molecules to stick together (held by hydrogen bo
describe the phylums of invertebrates?
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