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Which of the following is NOT a conductor of electricity?

  • (A) Copper
  • (B) Silver
  • (C) Rubber
  • (D) Gold

Answer: Rubber

Rubber is an insulator, meaning it does not conduct electricity, unlike copper, silver and gold, which are good conductors.

Which gas is produced during the process of respiration?

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

Answer: Carbon dioxide

Carbon dioxide is produced as a byproduct of cellular respiration, where oxygen is used to break down glucose to release energy.

What is the unit of work in the SI system?

  • (A) Joule
  • (B) Watt
  • (C) Newton
  • (D) Volt

Answer: Joule

The SI unit of work is the Joule (J), which is the energy used when a force of one newton displaces an object by one meter.

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Which element has the chemical symbol Na?

  • (A) Nitrogen
  • (B) Sodium
  • (C) Nickel
  • (D) Neon

Answer: Sodium

Sodium, with the chemical symbol Na, is an alkali metal found in Group 1 of the periodic table.

What is the function of the small intestine in the digestive system?

  • (A) Absorption
  • (B) Digestion
  • (C) Filtration
  • (D) Secretion

Answer: Absorption

The small intestine is primarily responsible for the absorption of nutrients from digested food.

Which of the following is a property of a solid?

  • (A) Definite shape
  • (B) Takes the shape of its container
  • (C) No definite volume
  • (D) Can be compressed

Answer: Definite shape

Solids have a fixed shape and volume due to their particles being closely packed together.

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What is the primary function of the white blood cells?

  • (A) Carry oxygen
  • (B) Fight infections
  • (C) Digest food
  • (D) Regulate body temperature

Answer: Fight infections

White blood cells (leukocytes) are part of the immune system and protect the body from infections and diseases.

What type of organism is responsible for decomposing dead matter?

  • (A) Fungi
  • (B) Plants
  • (C) Animals
  • (D) Bacteria

Answer: Fungi

Fungi, including mushrooms and molds, are decomposers that break down dead organic material, recycling nutrients back into the ecosystem.

What is the unit of electric potential difference?

  • (A) Ampere
  • (B) Watt
  • (C) Volt
  • (D) Ohm

Answer: Volt

The unit of electric potential difference is the Volt (V), representing the energy per unit charge.

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Which of the following is a noble gas?

  • (A) Oxygen
  • (B) Hydrogen
  • (C) Neon
  • (D) Nitrogen

Answer: Neon

Neon is a noble gas, which is chemically inert and does not readily form compounds.

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