Stars and Solar...

The tail of a comet points away from the Sun due to

A planet which is called born sister of Earth is

India's first artificial satellite is

Which planet does not have any moons?

 According to the table, on which planet would a ball fall the fastest?

Read the given statements and select the correct option.

Statement 1: Venus is hotter than mercury though it is far away from the Sun.
Statement 2: Cloudy atmosphere of Venus reflects almost 75 percent of the sunlight that falls on it.

The artificial satellites sent into space by India in ascending order of their launching date is

Match the Column I with Column II and select the correct option from the codes given below.

Consider the following statements and select the option which correctly identifies true (T) and false (F).

(i)  Mars is the red planet because it is hottest planet of solar system.
(ii) The galaxy in which our solar system is located is milky way,
(iii) Hydrogen burns as fuel in stars.
(iv) A nebula is a cloud of dust and gas in space.