Question

. Dolphins and whales have _____________ to breathe.
2. Rotation of eath around the sun is ___________ motion.
3. All bodies which emit light energy by themselves are called __________________________ bodies.
4. The path along which the light travels in a given direction is called a _____________________ of light.
5. Direction of electric current in the circuit is from ___________ to ___________ terminal.
6. Brightness of a bulb depends on the power of bulb and the __________ flowing through it.
7. Natural magnet is known as ___________.
8. __________________ is the process of conversion of water vapour into water on cooling .
9. ____________ air is used in tyres of vehicles.
10. The process of breakdown of complex substances into simpler substances is called __________________.

Answer 1

$\huge\mathfrak\red{Answer :) }$

10 weathering

2 circular motion

1 gills

Answer 2

1 = dolphins and whales have lungs to breathe.

2 rotation of the earth around the sun is is revolution motion.

3 = natural magnet is called natural magnet.