In certain seasons we sweat profusely while in some other season we shiver. Explain.

How can we save petrol by properly inflating the tyres of vehicles ?Explain.

Is the sun's gravitational pull on the earth the same in all seasons of the year ? Explain.

Why is that in certain plants deficiency symptoms appear first in younger parts of the plant while in others they do so in mature organs?

In a certain taxon of insects some have 17 chromosomes and the others have 18 chromosomes. The 17 and 18 chromosome bearing organisms are: