Pakistan Current Affairs 100 MCQS
Which planet is known as the Red Planet?
- A) Earth
- B) Mars
- C) Jupiter
- D) Venus
What is the chemical symbol for water?
- A) H2
- B) O2
- C) H2O
- D) CO2
What gas do plants absorb from the atmosphere during photosynthesis?
- A) Oxygen
- B) Nitrogen
- C) Carbon dioxide
- D) Methane
Which vitamin is produced when the skin is exposed to sunlight?
- A) Vitamin A
- B) Vitamin B
- C) Vitamin C
- D) Vitamin D
What is the most abundant gas in the Earth’s atmosphere?
- A) Oxygen
- B) Nitrogen
- C) Carbon dioxide
- D) Hydrogen
What is the hardest natural substance on Earth?
- A) Gold
- B) Iron
- C) Diamond
- D) Silver
What is the process by which plants make their food?
- A) Digestion
- B) Photosynthesis
- C) Respiration
- D) Transpiration
Which part of the cell contains the genetic material?
- A) Cytoplasm
- B) Nucleus
- C) Cell membrane
- D) Ribosome
What is the boiling point of water?
- A) 50°C
- B) 75°C
- C) 100°C
- D) 125°C
Which of the following is not a renewable source of energy?
- A) Solar
- B) Wind
- C) Coal
- D) Hydro
What is the main gas responsible for the greenhouse effect?
- A) Oxygen
- B) Nitrogen
- C) Carbon dioxide
- D) Argon
What is the primary source of energy for the Earth’s climate system?
- A) The Moon
- B) The Sun
- C) The Earth’s core
- D) Ocean currents
What is the chemical formula for table salt?
- A) NaCl
- B) KCl
- C) MgCl2
- D) CaCl2
Which organ is responsible for pumping blood throughout the human body?
- A) Lungs
- B) Kidney
- C) Heart
- D) Liver
What is the largest planet in our solar system?
- A) Earth
- B) Mars
- C) Jupiter
- D) Saturn
Which element is essential for the production of hemoglobin in blood?
- A) Calcium
- B) Iron
- C) Magnesium
- D) Sodium
What is the main component of the sun?
- A) Oxygen
- B) Nitrogen
- C) Hydrogen
- D) Helium
What type of energy is produced by vibrating objects?
- A) Electrical energy
- B) Thermal energy
- C) Sound energy
- D) Chemical energy
What is the smallest unit of life?
- A) Organism
- B) Cell
- C) Tissue
- D) Organ
Which gas is commonly used in light bulbs?
- A) Oxygen
- B) Nitrogen
- C) Argon
- D) Hydrogen
What force keeps the planets in orbit around the sun?
- A) Magnetic force
- B) Electromagnetic force
- C) Nuclear force
- D) Gravitational force
What is the study of weather called?
- A) Biology
- B) Geology
- C) Meteorology
- D) Astronomy
Which of these is a non-metal?
- A) Gold
- B) Silver
- C) Carbon
- D) Copper
What is the powerhouse of the cell?
- A) Ribosome
- B) Nucleus
- C) Mitochondria
- D) Endoplasmic reticulum
What is the chemical symbol for gold?
- A) Au
- B) Ag
- C) Pb
- D) Fe
What is the most common element in the universe?
- A) Oxygen
- B) Hydrogen
- C) Helium
- D) Carbon
Which planet has the most moons?
- A) Earth
- B) Mars
- C) Jupiter
- D) Saturn
What is the main function of the roots of a plant?
- A) Photosynthesis
- B) Absorption of water and nutrients
- C) Producing seeds
- D) Respiration
What is the chemical formula for carbon dioxide?
- A) CO
- B) CO2
- C) C2O
- D) C2O2
What type of bond involves the sharing of electron pairs between atoms?
- A) Ionic bond
- B) Hydrogen bond
- C) Covalent bond
- D) Metallic bond
Which planet is closest to the sun?
- A) Earth
- B) Venus
- C) Mercury
- D) Mars
What is the largest organ in the human body?
- A) Heart