The Earth's gravity pulls us towards the ground.

His ability is recognized.

His words were a clear insult.

The climate in the Arctic is very harsh.

He is making an effort every day to pass the exam.

His ability is a great merit of his success.

Power often changes people.

The power supply in this area is unstable.

Despite its size, this ship is floating on the water surface thanks to buoyancy.

Nuclear power is one of the renewable energies.