Tissues — Science STD 9 — Question

When sugar is dissolved in water, there is no increase in the volume. Which characteristic of matter is illustrated by this observation?

In the following questions, a statement of Assertion is given by the corresponding statement of Reason. Of the statements, mark the correct answer as:
Assertion: In crop rotation, two or more crops are grown together on same land.
Reason: It ensures maximum utilisation of nutrients supplied.

Name the solvent you would use to separate a mixture of sulphur and carbon.

Name the tissue present in the brain.

Name the substance which has been traditionally used as manure in our country.

Is it possible for the atom of an element to have one electron, one proton and no neutron. If so, name the element.

How is a common name misleading?

Name the three tiny bones present in the middle part of ear.

Explain why, the flash of a gun shot reaches us before the sound of the gun shot.

Give one example of a motion where an object does not change its speed but its direction of motion changes continuously.