Question

Q1. Fill in the blanks.

i) Coal is an _________________ whereas air is an __________________ natural resource.

ii) Natural gas consists of ________________

iii) The phenomenon of a ray of light getting reflected more than once, is called ___________________.

iv) The band of colours produced when white light is split up is called _______________.

v) The light sensitive cells on the retina are called __________________.​

Answer 1

Answer:

1. exhaustable natural resource , inexhaustible natural resource
2. methane
3. reflection
4. dispersion
5. rods