Four cars are running at the same speed on different tracks. If they possess the same momentum, then what will be the ratio of their kinetic

How did life first appear on earth ?

Is there any plant which displays both autotrophic and heterotrophic mode of nutrition ?

If an objects travels around the Earth along the equator in 15 minutes, then how long will it take for the object to travel to the moon ?

What is the definition of kinemetics?