Natural Resourc...

During summer, Boojho carries water in a transparent plastic bottle to his school. One day he left his bottle in the school. The bottle still had some water left in it. The following day, he observed some water droplets on the inner surface of the empty portion of the bottle. These droplets of water were formed due to

In an activity, a teacher dissolved a small amount of solid copper sulphate in a tumbler half-filled with water. Which method would you use to get back solid copper sulphate from the solution?

Paheli asked for a glass of water from Boojho. He gave her a glass of ice-cold water. Paheli observed some water droplets on the outer surface of the glass and asked Boojho how these droplets of water were formed? Which of the following should be Boojhos answer?

Oxygen is harmful for:

In Ozone, number of Oxygen atoms are:

Water exists in the form of

Western Ghats have high biodiversity because

Which one is not dangerous?

Escherichia coli is used as an indicator organism to determine pollution of water with:

Of more immediate concern regarding carbon cycle is