You have learnt that there are three essential requirements for producing fire. Can you list these requirements?

State an essential requirement for doping process.

Can you list some inflammable substances?

Which of the following statements are true? If false, correct them: It is very easy to establish the essentiality of micronutrients because they are required only in trace quantities.

How much electricity in terms of Faraday is required to produce 20g of Ca from molten CaCl_2 ,

Think of your daily routine— how can you save water?