Bank PO Questions

Chungneijang Mary Kom Hmangte, better known as Mary Kom is an Indian Olympic boxer from Manipur. She is the only woman to become World Amateur Boxing champion for a record six times, and the only woman boxer to have won a medal in each one of the seven world championships.

We have all been taught that water freezes at 32 degrees Fahrenheit, 0 degrees Celsius, 273.15 Kelvin. That's not always the case, though. Scientists have found liquid water as cold as -40 degrees F in clouds and even cooled water down to -42 degrees F in the lab.

Heat energy can be transferred by three major methods. They are 

1. Conduction,

2. Convection and

3. Radiation.

Conduction is the movement of heat through a substance by the collision of molecules

Convection occurs when particles with a lot of heat energy in a liquid or gas move and take the place of particles with less heat energy.

Radiation is the transfer of energy by means of photons in electromagnetic waves governed by the same laws. It occurs through a vacuum or any transparent medium.

The Pacific Ocean is the largest and deepest of Earth's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean in the south. We know that, Earth is made up of 70% of water and 30% of land. Pacific Ocean covers 1/3rd of the water on the Planet Earth.

Exactly 24 times.

Joseph Priestley and Carl Wilhelm Scheele both independently discovered oxygen in the year 1774, but Priestly is usually given credit for the discovery.