Improvement In Food Resources — Science STD 9 — Question

On the earth, a stone is thrown from a height in a direction parallel to the earth’s surface while another stone is simultaneously dropped from the same height. Which stone would reach the ground first and why?

Does blue ink consist of a single colour or more than one colour?

India has ______ Major river basins and ______ composite river basins that form the surface water resource.

Give one function of each of the following:
Cardiac muscle fibres.

Which postulate of Dalton’s atomic theory can explain the law of definite proportions?

Name the gas which produces anode rays consisting of protons in the discharge tube experiment.

Name the disease in which:

1. Patient fears from water.
2. Yellowing of skin takes place.

Name the physical quantity whose unit is kg m/s.