The colour of the ocean appears to be blue because the sunlight falling on it is-

The basic structural and functional unit of living organisms is-

When a wave is intercepted by an article, the rays bend round the obstacle particle. The phenomenon is known as-

Plant which does not bear flower but have seed–

Which one is known as magnetite-

Wine contains-

Rickets is caused due to the deficiency of-

Which proteins is main constituent of milk?