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The difference between hard and soft water
Collect some hard water from a stream(or make some as defined in the next experiment). Also secure some soft water like as rain water or distilled water. Make some soap solution by dissolving soap shavings or powdered soap in a little warm water. Place equivalent amounts of hard and soft water in every of two bottles. Add soap solution to the soft water with a dropper, some drops at a time. Shake the bottle well after every addition. Count the number of drops of soap solution required to produce suds about 1 cm thick on the top.
Microbes: You should know that invisible microbes are present everywhere, because they can surviveeven under very inhospitable conditions. They are all around us, in the air
Prevention of disease: Now that we know that infectious diseases are caused by microbes, it should be possible to prevent diseases by controlling their transmission and proper
For chemically reactive wastes : The chemical property of the waste could be used in its removal in a number of ways as given below: i) Some water-reactive waste could be dispo
how does excretory system of lizard work?
Explain the Secondary Active Transport In secondary active transport, there is no direct coupling of ATP; instead the electrochemical potential difference created by pumping io
What is Soil Aggregation and explain its beneficial role Some organisms may play a beneficial role indirectly by creating better soil physical conditions e.g., by improving soi
HOW TO ORGANISE AN INTERACTION SESSION: How should we begin? What are the norms? What is the time slot? Any assessment criteria? These and many such questions may be coming to you
Maintain the Calcium Levels of Body– Function of Kidney Maintain the body’s calcium levels. Along with parathormone and calcitriol, kidney helps the body to absorb calcium.
what is meant by this topic?
Minerals Minerals like coal, iron, copper, steel etc. are used in all kinds of industries and in every-day life. The rate of consumption of minerals is increasing every year.
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