What is the body's largest organ

What 3 elements are needed to start a fire?

What is the rarest blood type in humans?

What metal is the best conductor of electricity?

What is the heaviest organ in the human body?

Which is the main gas that makes up the Earth's atmosphere?

Which of the following is not a periodic table elements

The concept of gravity was discovered by which famous physicist?

How many colors are in the rainbow?

Which is the most abundant element in the universe?

What is the hardest natural substance on Earth?

Who is Albert Einstein?

Name the atom that has a single electron.

X is a change of momentum due to the action of a force.

What is X?

What is the name of polygon given

Which of the following is not an energy

X is a vital organ for human body.

What is X?

X can be transfer , donate or loss.

What could X be?

What cause dinosaur extinction?

X and Y is a cold blooded animal.

What is X and Y

Which of the following is a prime number?

X is the natural science of matter, involving the study of matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force.

What's X?

Which of the following is a cell?

What is the densest planet?