Human Eye and Colourful World — Science STD 10 — Question

A metal having low melting point is ________ but a non-metal having very high melting point is _________.

The horizontal rows in a periodic table are called _________.

________ of water can be tested by using universal indicators.

Fill in the following blanks with suitable words:
Most of the refraction of light rays entering the eye occurs at the outer surface of the _____.

Matter can neither be ____________ nor in a chemical reaction.

Fill in the following blanks with suitable words:
In pea plants, the gene for dwarfness is _________ whereas that for tallness is __________.

Vegetative reproduction of potato plants is done by using __________ .

Fill in the blanks in the following sentences:
Acids have a ________ taste and they turn ________ litmus to ________.

Fill in the following blanks with suitable words:
Strawberry plants are propagated by the natural __________ method.

A ray of light which is parallel to the principal axis of a convex mirror, appears to be coming from ______ after reflection from the mirror.