Questions

The earth moves round the sun.

Here there are combination of two series.

 1) 9, 18, 36, 72, 144

 2) 8, 6, 4, 2, 0

Therefore, The next number in the given series is 0.

A pencil is an implement for writing or drawing. It is a thin core of graphite well mixed with clay, inside a wooden body as protective casing that prevents the core from being broken.

Uranus is the seventh planet from the Sun which looks green color. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have different bulk chemical composition from that of the larger gas giants Jupiter and Saturn.

Colors of other planets::

Mercury - Gray or slightly brownish

Venus - Pale yellow

Earth - Blue with white clouds

Mars - Mostly reddish brown

Jupiter - Orange and white bands

Saturn - Pale gold

Uranus - Green

Neptune - Pale blue

Pluto - Light brown