Look at the pictures given on textbook page 49 and guess how the seeds travel and reach different places?

If Neinuo wanted to eat rice she should have gone to the state of West Bengal (a major rice product area).

The correct answer is Niger.

b. Methyl Iso-Cyanate

I think seeds of cumin, aniseed and mustard may have been spreading by flying.

Yes, I have heard their sound.

Seeds are spread by birds, animals, air and water. Birds and animals throw out seeds after eating the fruit. Thus the seeds spread out. Similarly, some light seeds are spread...

These days water is pumped up using boring machines, windmill etc. Somewhere, especially in villages, traditional method like using bullocks are also used. 

On taking this snake below a fan, it moves in the anticlockwise direction. This is because, here the air is moving downwards.

(c) The source of ozone is the oxygen in the atmosphere. Ozone layer protects the living being from the UV radiation which reaches the earth.

(d) Maharishi Bhrigu was the first compiler of predictive astrology, Jyotisha. He is credited as the father of Hindu astrology and the first astrological treatise Bhrigu Samhita is attributed to...