Which planet has the largest gravity?

The movement Inside the earth's crust is studied by-

Shooting star is another name for-

Oceanic tidal waves which result from earthquakes are known as-

Earthquakes are caused by-

The tail of a comet always points-

Which of the following is not the constituent of the solar system?

Which planet has the shortest day?

The range of the strength of earthquakes observed generally on the Rlchter scale Is-

The centre of solar system is-