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What is the chemical symbol for the element oxygen?

  • (A) O
  • (B) O2
  • (C) Ox
  • (D) Oy

Answer: O

Oxygen is represented by the chemical symbol O and is essential for respiration in living organisms.

Which part of the brain is responsible for coordination and balance?

  • (A) Cerebrum
  • (B) Cerebellum
  • (C) Medulla
  • (D) Hypothalamus

Answer: Cerebellum

The cerebellum is responsible for coordinating movement and maintaining balance and posture.

Which process involves the change of a liquid to a gas?

  • (A) Condensation
  • (B) Freezing
  • (C) Boiling
  • (D) Evaporation

Answer: Evaporation

Evaporation is the process where liquid changes into a gas, usually due to heat, as molecules gain enough energy to escape into the air.

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Which planet is known for its prominent ring system?

  • (A) Venus
  • (B) Saturn
  • (C) Jupiter
  • (D) Uranus

Answer: Saturn

Saturn is famous for its beautiful and extensive ring system, made up of ice, rock and dust particles.

What is the main source of energy for the Sun?

  • (A) Nuclear fusion
  • (B) Chemical reaction
  • (C) Solar radiation
  • (D) Gravitational force

Answer: Nuclear fusion

The Sun?s energy comes from nuclear fusion, where hydrogen atoms fuse to form helium, releasing energy.

What is the term used for the flow of electric charge?

  • (A) Voltage
  • (B) Current
  • (C) Resistance
  • (D) Power

Answer: Current

Electric current is the flow of electric charge, typically carried by electrons through a conductor.

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What is the largest planet in our solar system?

  • (A) Earth
  • (B) Saturn
  • (C) Jupiter
  • (D) Uranus

Answer: Jupiter

Jupiter is the largest planet in the solar system, known for its massive size and strong magnetic field.

What is the primary component of air?

  • (A) Oxygen
  • (B) Nitrogen
  • (C) Carbon dioxide
  • (D) Hydrogen

Answer: Nitrogen

Nitrogen makes up about 78% of the Earths atmosphere, while oxygen makes up about 21%.

Which part of the human brain controls breathing?

  • (A) Cerebrum
  • (B) Medulla
  • (C) Cerebellum
  • (D) Hypothalamus

Answer: Medulla

The medulla oblongata controls involuntary functions, including breathing, heart rate and digestion.

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