Best Quizzes of General Science/ Every Day Science
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Everyday Science Questions and Answers
Q: What is the chemical symbol for water?
a) O₂
b) H₂O
c) CO₂
d) O₃
Correct Answer: b) H₂O
Q: Which of the following is the hardest naturally occurring substance on Earth?
a) Gold
b) Diamond
c) Iron
d) Platinum
Correct Answer: b) Diamond
Q: Which planet is known as the “Red Planet”?
a) Venus
b) Mars
c) Jupiter
d) Saturn
Correct Answer: b) Mars
Q: What is the main gas responsible for global warming?
a) Oxygen
b) Nitrogen
c) Carbon Dioxide
d) Helium
Correct Answer: c) Carbon Dioxide
Q: Which of the following is the largest organ in the human body?
a) Heart
b) Brain
c) Skin
d) Liver
Correct Answer: c) Skin
Q: What is the boiling point of water at sea level?
a) 100°C
b) 0°C
c) 212°F
d) 50°C
Correct Answer: a) 100°C
Q: Which part of the plant conducts photosynthesis?
a) Roots
b) Flowers
c) Leaves
d) Stem
Correct Answer: c) Leaves
Q: Who is known as the father of modern physics?
a) Isaac Newton
b) Albert Einstein
c) Galileo Galilei
d) Nikola Tesla
Correct Answer: b) Albert Einstein
Q: What is the chemical symbol for gold?
a) Au
b) Ag
c) Fe
d) Pb
Correct Answer: a) Au
Q: Which of the following is the lightest element in the periodic table?
a) Hydrogen
b) Oxygen
c) Helium
d) Nitrogen
Correct Answer: a) Hydrogen
Q: The Earth’s atmosphere is mainly composed of which gas?
a) Oxygen
b) Carbon dioxide
c) Nitrogen
d) Hydrogen
Correct Answer: c) Nitrogen
Q: What is the process by which plants make their own food using sunlight?
a) Respiration
b) Photosynthesis
c) Transpiration
d) Germination
Correct Answer: b) Photosynthesis
Q: Which of the following is a renewable source of energy?
a) Coal
b) Natural gas
c) Solar energy
d) Oil
Correct Answer: c) Solar energy
Q: What is the unit of force in the International System of Units (SI)?
a) Joule
b) Newton
c) Watt
d) Pascal
Correct Answer: b) Newton
Q: What is the name of the process by which a liquid turns into a gas?
a) Condensation
b) Evaporation
c) Freezing
d) Melting
Correct Answer: b) Evaporation
General Science MCQs and Answers
If you’re preparing for entry into a cadet college or applying to the armed forces — whether Pakistan Army, Pakistan Navy or Pakistan Air Force — mastering Everyday Science is essential. Everyday science MCQs, general science MCQs, biology MCQs, physics MCQs, chemistry MCQs, and environmental science MCQs are among the most searched and most frequently tested topics in entrance tests and initial examinations. Questions often cover human‑body and health science, astronomy (planets and solar system), ecology, natural phenomena, and basic science facts.
Practicing comprehensive science objective questions and answers — including general science MCQs for cadet college entrance, everyday science quiz questions, and environmental or earth‑science MCQs — not only sharpens your conceptual knowledge but also improves your speed and accuracy under pressure. With regular revision of basic science questions for military tests and general science facts MCQs, you can build a strong foundation and boost your chances of success in initial tests.
Q: Which of the following is a non-renewable source of energy?
a) Solar energy
b) Wind energy
c) Coal
d) Geothermal energy
Correct Answer: c) Coal
Q: Which part of the eye controls the amount of light entering?
a) Retina
b) Cornea
c) Lens
d) Iris
Correct Answer: d) Iris
Q: What is the unit of electric current?
a) Volt
b) Watt
c) Ampere
d) Ohm
Correct Answer: c) Ampere
Q: The Sun is primarily composed of which two elements?
a) Hydrogen and Oxygen
b) Hydrogen and Helium
c) Helium and Nitrogen
d) Carbon and Hydrogen
Correct Answer: b) Hydrogen and Helium
Q: Which gas is essential for respiration in humans?
a) Carbon Dioxide
b) Oxygen
c) Nitrogen
d) Hydrogen
Correct Answer: b) Oxygen
Q: The boiling point of water decreases as you move from sea level to higher altitudes. What is the reason for this?
a) Decrease in atmospheric pressure
b) Increase in air temperature
c) Decrease in air humidity
d) Increase in atmospheric pressure
Correct Answer: a) Decrease in atmospheric pressure
Q: What is the most common element in the Earth’s crust?
a) Oxygen
b) Silicon
c) Iron
d) Aluminum
Correct Answer: a) Oxygen
Q: Which of the following is the best conductor of electricity?
a) Plastic
b) Copper
c) Wood
d) Rubber
Correct Answer: b) Copper
Q: What type of rock is formed from solidified lava or magma?
a) Sedimentary
b) Metamorphic
c) Igneous
d) Limestone
Correct Answer: c) Igneous
Q: Which of the following is an example of a chemical change?
a) Ice melting
b) Paper tearing
c) Iron rusting
d) Water evaporating
Correct Answer: c) Iron rusting
Q: What is the primary function of the red blood cells?
a) To fight infection
b) To carry oxygen
c) To digest food
d) To clot blood
Correct Answer: b) To carry oxygen
Q: Which of the following is the main source of energy for living organisms?
a) Protein
b) Carbohydrates
c) Lipids
d) Vitamins
Correct Answer: b) Carbohydrates
Q: What does the ozone layer protect the Earth from?
a) Ultraviolet (UV) radiation
b) Radioactive waves
c) Cosmic rays
d) Solar winds
Correct Answer: a) Ultraviolet (UV) radiation
Q: The process of converting a solid directly into a gas is called:
a) Melting
b) Freezing
c) Sublimation
d) Condensation
Correct Answer: c) Sublimation
Q: Which vitamin is produced by the body when exposed to sunlight?
a) Vitamin A
b) Vitamin B
c) Vitamin C
d) Vitamin D
Correct Answer: d) Vitamin D
Q: What is the main function of the digestive system?
a) To circulate blood
b) To break down food into nutrients
c) To produce energy
d) To remove waste from the body
Correct Answer: b) To break down food into nutrients
Q: Which of the following is the largest organ in the human body?
a) Brain
b) Liver
c) Heart
d) Skin
Correct Answer: d) Skin
Q: What is the chemical formula for methane?
a) CO₂
b) H₂O
c) CH₄
d) O₂
Correct Answer: c) CH₄
Q: What is the term for the process by which plants release water vapor into the air?
a) Evaporation
b) Photosynthesis
c) Transpiration
d) Respiration
Correct Answer: c) Transpiration
Q: Which planet has the longest day?
a) Venus
b) Earth
c) Mars
d) Jupiter
Correct Answer: a) Venus
Q: Which of the following is not a greenhouse gas?
a) Carbon dioxide
b) Methane
c) Oxygen
d) Nitrous oxide
Correct Answer: c) Oxygen
Q: 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) Wind currents
Correct Answer: b) The Sun
Q: What is the chemical symbol for silver?
a) Ag
b) Au
c) Pb
d) Fe
Correct Answer: a) Ag
Q: What does the term “acidity” in a solution refer to?
a) The amount of hydrogen ions (H⁺)
b) The amount of oxygen ions (O²⁻)
c) The concentration of salt
d) The pH level of the solution
Correct Answer: a) The amount of hydrogen ions (H⁺)
Q: Which part of the brain is responsible for regulating vital functions like breathing and heartbeat?
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus
Correct Answer: c) Medulla oblongata
Q: Which of the following is the smallest unit of life?
a) Organ
b) Organism
c) Cell
d) Tissue
Correct Answer: c) Cell
General Science MCQs for Initial Tests of Cadet Colleges and Army
Q: What is the most abundant gas in the Earth’s atmosphere?
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Hydrogen
Correct Answer: c) Nitrogen
Q: What is the chemical formula for methane?
a) CH₄
b) CO₂
c) C₆H₁₂O₆
d) H₂O
Correct Answer: a) CH₄
Q: The Earth revolves around the Sun in how many days?
a) 365 days
b) 366 days
c) 360 days
d) 364 days
Correct Answer: a) 365 days
Q: What part of the plant is responsible for photosynthesis?
a) Stem
b) Roots
c) Leaves
d) Flowers
Correct Answer: c) Leaves
Q: The human body consists of how many bones in total?
a) 206
b) 208
c) 210
d) 202
Correct Answer: a) 206
Q: Which organ in the human body pumps blood?
a) Brain
b) Liver
c) Heart
d) Kidney
Correct Answer: c) Heart
Q: Which vitamin is produced by the body when exposed to sunlight?
a) Vitamin A
b) Vitamin B
c) Vitamin C
d) Vitamin D
Correct Answer: d) Vitamin D
Q: What is the primary source of energy for the Earth’s climate?
a) Wind
b) Sun
c) Oceans
d) Volcanoes
Correct Answer: b) Sun
Q: Which planet is known as the “Red Planet”?
a) Venus
b) Mars
c) Jupiter
d) Saturn
Correct Answer: b) Mars
Q: Water boils at 100°C at what pressure?
a) 1 atmosphere
b) 2 atmospheres
c) 1.5 atmospheres
d) 0.5 atmosphere
Correct Answer: a) 1 atmosphere
Q: Which of the following is a chemical element?
a) Water
b) Air
c) Gold
d) Salt
Correct Answer: c) Gold
Q: Which of the following is a noble gas?
a) Oxygen
b) Nitrogen
c) Helium
d) Hydrogen
Correct Answer: c) Helium
Q: The unit of force in the International System of Units is:
a) Newton
b) Joule
c) Watt
d) Ampere
Correct Answer: a) Newton
Q: What is the process by which plants make their food?
a) Respiration
b) Photosynthesis
c) Transpiration
d) Germination
Correct Answer: b) Photosynthesis
Q: Which is the largest organ in the human body?
a) Brain
b) Skin
c) Liver
d) Heart
Correct Answer: b) Skin
Q: The Earth is located in which galaxy?
a) Andromeda
b) Milky Way
c) Triangulum
d) Sagittarius
Correct Answer: b) Milky Way
Q: What is the term for the change of state from gas to liquid?
a) Evaporation
b) Condensation
c) Freezing
d) Melting
Correct Answer: b) Condensation
Q: Which gas is most commonly responsible for global warming?
a) Oxygen
b) Nitrogen
c) Carbon Dioxide
d) Hydrogen
Correct Answer: c) Carbon Dioxide
Q: What part of the brain controls vital functions such as breathing?
a) Cerebellum
b) Cerebrum
c) Medulla Oblongata
d) Hypothalamus
Correct Answer: c) Medulla Oblongata
Q: Which of the following is an example of an exothermic reaction?
a) Melting of ice
b) Burning of wood
c) Dissolving salt in water
d) Evaporation of water
Correct Answer: b) Burning of wood
Q: The basic unit of heredity is called a:
a) Gene
b) Chromosome
c) Nucleus
d) Cell
Correct Answer: a) Gene
Q: In which state of matter are the particles closest together?
a) Solid
b) Liquid
c) Gas
d) Plasma
Correct Answer: a) Solid
Q: The number of chromosomes in a human cell is:
a) 23
b) 44
c) 46
d) 48
Correct Answer: c) 46
Q: Which planet is closest to the Earth?
a) Mars
b) Venus
c) Jupiter
d) Saturn
Correct Answer: b) Venus
Q: Which of the following is an example of a renewable resource?
a) Coal
b) Oil
c) Solar Energy
d) Natural Gas
Correct Answer: c) Solar Energy
Q: Which of the following elements is a noble gas?
a) Helium
b) Oxygen
c) Nitrogen
d) Chlorine
Correct Answer: a) Helium
Q: Which part of the cell is responsible for producing energy?
a) Nucleus
b) Mitochondria
c) Ribosomes
d) Chloroplasts
Correct Answer: b) Mitochondria
Q: What type of bond holds the atoms in a molecule of water together?
a) Ionic Bond
b) Hydrogen Bond
c) Covalent Bond
d) Van der Waals Forces
Correct Answer: c) Covalent Bond
Q: The force that pulls objects toward the Earth is called:
a) Friction
b) Gravity
c) Magnetism
d) Electrostatic force
Correct Answer: b) Gravity
Q: What is the most common element in the Earth’s crust?
a) Iron
b) Oxygen
c) Silicon
d) Aluminum
Correct Answer: b) Oxygen
Q: Which is the largest internal organ in the human body?
a) Brain
b) Heart
c) Liver
d) Lung
Correct Answer: c) Liver
Q: Which planet is known for its beautiful rings?
a) Earth
b) Venus
c) Mars
d) Saturn
Correct Answer: d) Saturn
Q: Which gas do plants absorb during photosynthesis?
a) Oxygen
b) Carbon Dioxide
c) Nitrogen
d) Hydrogen
Correct Answer: b) Carbon Dioxide
Q: What is the process by which a liquid turns into a gas?
a) Condensation
b) Freezing
c) Evaporation
d) Sublimation
Correct Answer: c) Evaporation
Q: Which of the following is an example of a physical change?
a) Burning of paper
b) Rusting of iron
c) Melting of ice
d) Digestion of food
Correct Answer: c) Melting of ice
Q: Which vitamin is essential for the clotting of blood?
a) Vitamin A
b) Vitamin B12
c) Vitamin C
d) Vitamin K
Correct Answer: d) Vitamin K
Q: What is the freezing point of water?
a) 0°C
b) 32°C
c) 100°C
d) -32°C
Correct Answer: a) 0°C
Q: What is the powerhouse of the cell?
a) Nucleus
b) Mitochondria
c) Ribosomes
d) Golgi apparatus
Correct Answer: b) Mitochondria
Q: Which of the following is an example of an insulator?
a) Copper
b) Iron
c) Wood
d) Steel
Correct Answer: c) Wood
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