are
3) Describe how crystals of copper sulphate
prepared a
a) can we survive only with raw leaty
vegetables, glass ? discuss
b) Draw a part of human digestive system
Label
and
Answers
Answer:
3) Crystallization is the process by which we can obtain crystals of copper sulphate. In this process, a few drops of dilute sulphuric acid is added to water. The water is then boiled & as it starts boiling, copper sulphate powder is added with stirring. The powder must be added on till the solution becomes saturated. Afterwards, it is filtered into a china dish and allowed to cool, undisturbed. After some time the crystals of copper sulphate separate out.
a) No, Humans cannot survive only on raw, leafy vegetables, or grass. It is because the grass is rich in cellulose, which is a type of carbohydrate that humans are not able to digest due to the absence of cellulose-digesting enzymes. Also, our body requires all kinds of nutrients like protein, vitamins, minerals and fats. So human cannot survive only on raw, leafy vegetables.
b) The pic is above
Explanation:
hope it helps
