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100

 Who wrote The Odyssey?

Homer wrote The Odyssey.

100

Which scientist discovered radioactivity?

Marie Curie discovered radioactivity.
100

What is the chemical symbol for potassium?

letter K

100

Which continent has the most countries?

Africa has the most countries.

100

What is the largest species of shark?

the whale shark

200

What is the smallest bone in the human body?

The smallest bone in the human body is the stapes.

200

Which planet rotates on its side?

Uranus rotates on its side.

200

What is the longest mountain range in the world?

The Andes mountains

200

Which scientist proposed the laws of motion?

Isaac Newton proposed the laws of motion.

200

Which element has the atomic number 1?

Hydrogen has the atomic number 1.

300

Which instrument measures atmospheric pressure?

the barometer

300

Which country has the most islands in the world?

Sweden has the most islands in the world.

300

Which continent is entirely in the Southern Hemisphere?

Australia is entirely in the Southern Hemisphere.

300

What is the world’s largest rainforest?

the Amazon rainforest

300

Which metal is the best conductor of electricity?

The best conductor of electricity is silver.

400

Which sea separates Europe and Africa?

The Mediterranean Sea

400

Which country hosted the first modern Olympic Games?

Greece hosted the first modern Olympic Games.

400

Which philosopher taught Alexander the Great?

Aristotle taught Alexander the Great.

400

What is the speed of light approximately?

Approximately 300,000 km/s

400

What is the hardest known natural material?

It´s diamond.

500

What is the name of the galaxy containing Earth?

It´s the Milky Way.

500

What does DNA stand for?

It stands for Deoxyribonucleic Acid.

500

Which layer of Earth lies beneath the crust?

The mantle lies beneath the crust.

500

What is the deepest ocean trench in the world?

It´s Mariana Trench

500

Which civilization built the pyramids of Chichén Itzá?

the Maya Civilization

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