[60+] GENERAL SCIENCE MCQs & Answers For NTS, NET, SSB, SSC, IBPS, RRB, Govt. Exams

1. Go
2. Gl
3. Ge
4. Au

Ans. D

The chemical symbol for gold is “Au.”

1. Venus
2. Earth
3. Mars
4. Jupiter

Ans. C

Mars is known as the “Red Planet” due to its reddish appearance.

1. O2
2. H2O
3. CO2
4. H2

Ans. B

The chemical formula for water is “H2O.”

1. Respiration
2. Photosynthesis
3. Transpiration
4. Digestion

Ans. B

Photosynthesis is the process by which plants make their own food using sunlight.

1. Atom
2. Molecule
3. Cell
4. Particle

Ans. A

The smallest unit of matter is the “atom.”

1. Ribosome
2. Nucleus
3. Mitochondria
4. Endoplasmic Reticulum

Ans. C

The mitochondria is known as the powerhouse of the cell.

1. Isaac Newton
2. Albert Einstein
3. Galileo Galilei
4. Stephen Hawking

Ans. B

Albert Einstein is known as the father of modern physics.

1. Ox
2. O2
3. O
4. Oxg

Ans. C

The chemical symbol for oxygen is “O.”

1. Saturn
2. Uranus
3. Neptune
4. Mercury

Ans. A

Saturn is known for its beautiful rings.

1. Sl
2. Ag
3. Si
4. Sr

Ans. B

The chemical symbol for silver is “Ag.”

1. Volcanism
2. Tectonics
3. Erosion
4. Convection

Ans. B

The process of the Earth’s outer layer breaking into plates and moving is called “tectonics.”

1. He
2. Hl
3. Hy
4. Hm

Ans. A

The chemical symbol for helium is “He.”

1. Carbon dioxide
2. Oxygen
3. Nitrogen
4. Hydrogen

Ans. A

Plants absorb carbon dioxide from the atmosphere during photosynthesis.

1. Melting
2. Evaporation
3. Sublimation
4. Condensation

Ans. B

The process of water turning into vapor due to heat is called “evaporation.”

1. Earth
2. Venus
3. Mars
4. Mercury

Ans. D

Mercury is the smallest planet in our solar system.

1. Ir
2. Fe
3. In
4. Fi

Ans. B

The chemical symbol for iron is “Fe.”

1. Oxygen
2. Carbon dioxide
3. Chlorine
4. Hydrogen

Ans. B

The green color of plants is due to the presence of chlorophyll, not a gas.

1. Charles Darwin
2. Albert Einstein
3. James Watson and Francis Crick
4. Isaac Newton

Ans. C

The discovery of the structure of DNA is credited to James Watson and Francis Crick.

1. Co
2. Cr
3. C
4. Ca

Ans. C

The chemical symbol for carbon is “C.”

1. Nitrogen
2. Oxygen
3. Ozone
4. Chlorofluorocarbons (CFCs)

Ans. C

Ozone (O3) is responsible for the ozone layer in the Earth’s atmosphere.

1. Ampere
2. Volt
3. Ohm
4. Watt

Ans. C

The unit of electrical resistance is the “ohm.”

1. Carbon dioxide
2. Oxygen
3. Methane
4. Nitrogen

Ans. B

Plants produce oxygen (O2) during photosynthesis.

1. Sa
2. Sn
3. So
4. Na

Ans. D

The chemical symbol for sodium is “Na.”

1. Geology
2. Biology
3. Meteorology
4. Astronomy

Ans. C

The study of the Earth’s atmosphere and weather is called “Meteorology.”

1. Pt
2. K
3. Po
4. Ka

Ans. B

The chemical symbol for potassium is “K.”

1. Volt
2. Watt
3. Ampere
4. Joule

Ans. C

The unit of electric current is the “ampere.”

1. Oxygen
2. Carbon dioxide
3. Hydrogen
4. Nitrogen

Ans. B

Plants release carbon dioxide (CO2) during the night as part of respiration.

1. Isaac Newton
2. Albert Einstein
3. Galileo Galilei
4. Johannes Kepler

Ans. A

Isaac Newton is known for formulating the laws of motion and universal gravitation.

1. Le
2. Ld
3. Pb
4. Pl

Ans. C

The chemical symbol for lead is “Pb.”

1. Melting
2. Evaporation
3. Sublimation
4. Condensation

Ans. B

The process of a liquid turning into a gas at its boiling point is called “evaporation.”

1. Nitrous oxide
2. Oxygen
3. Carbon dioxide
4. Hydrogen peroxide

Ans. A

Nitrous oxide is known as “laughing gas” and is used in dentistry.

1. Isaac Newton
2. Albert Einstein
3. Niels Bohr
4. Stephen Hawking

Ans. B

The theory of relativity was proposed by Albert Einstein.

1. Carbon dioxide
2. Oxygen
3. Nitrogen
4. Helium

Ans. A

Humans primarily exhale carbon dioxide (CO2) during respiration.

1. Geology
2. Biology
3. Meteorology
4. Astronomy

Ans. A

The study of the Earth’s physical structure and substance is called “geology.”

1. Oxygen
2. Carbon dioxide
3. Nitrogen
4. Oxygen

Ans. C

Nitrogen is responsible for the blue color of the Earth’s sky, as it scatters sunlight in all directions, making the sky appear blue.

1. Sl
2. Ag
3. Si
4. Sr

Ans. B

The chemical symbol for silver is “Ag.”

1. Oxygen
2. Carbon dioxide
3. Nitrogen
4. Hydrogen

Ans. B

Carbon dioxide (CO2) is responsible for the greenhouse effect on Earth.

1. Louis Pasteur
2. Alexander Fleming
3. Robert Koch
4. Jonas Salk

Ans. B

Alexander Fleming is known for the discovery of penicillin, the first antibiotic.

1. Co
2. Cl
3. C
4. Ca

Ans. D

The chemical symbol for calcium is “Ca.”

1. Oxygen
2. Carbon dioxide
3. Helium
4. Nitrogen

Ans. C

Helium is commonly used in balloons to make them float.

1. Volt
2. Watt
3. Ampere
4. Coulomb

Ans. D

The unit of electric charge is the “coulomb.”

1. Nr
2. Ni
3. No
4. N

Ans. D

The chemical symbol for nitrogen is “N.”

1. Carbon dioxide
2. Oxygen
3. Nitrogen
4. Hydrogen

Ans. A

Animals primarily exhale carbon dioxide (CO2) during respiration.

1. Geology
2. Biology
3. Chemistry
4. Astronomy

Ans. C

The study of the behavior of matter and energy at the atomic and molecular level is called “chemistry.”

1. Iron
2. Oxygen
3. Silicon
4. Aluminum

Ans. B

Oxygen is the most abundant element in Earth’s crust.

1. Hy
2. He
3. H2
4. H

Ans. D

The chemical symbol for hydrogen is “H.”

1. Respiration
2. Photosynthesis
3. Transpiration
4. Digestion

Ans. C

The process by which plants lose water vapor through their leaves is called “transpiration.”

1. Charles Darwin
2. Isaac Newton
3. Gregor Mendel
4. Albert Einstein

Ans. A

Charles Darwin developed the theory of evolution by natural selection.

1. Co
2. Cr
3. Cd
4. CO2

Ans. D

The chemical symbol for carbon dioxide is “CO2.”

1. Oxygen
2. Nitrogen
3. Carbon dioxide
4. Hydrogen

Ans. C

Carbon dioxide (CO2) is responsible for the fizz in carbonated drinks.

1. Hertz
2. Watt
3. Volt
4. Joule

Ans. A

The unit of measurement for frequency is the “Hertz (Hz).”

1. Oxygen
2. Carbon dioxide
3. Nitrogen
4. Helium

Ans. D

Helium is used by scuba divers for underwater breathing.

1. Isaac Newton
2. Albert Einstein
3. Galileo Galilei
4. Johannes Kepler

Ans. A

Isaac Newton is known for the three laws of motion.

1. Melting
2. Evaporation
3. Sublimation
4. Condensation

Ans. C

Sublimation is the process of a substance changing directly from a solid to a gas.

1. He
2. Hl
3. Hy
4. Hm

Ans. A

Helium is a noble gas with the chemical symbol He and is commonly used in balloons and for cooling in scientific applications.

1. Kelvin
2. Fahrenheit
3. Celsius
4. Rankine

Ans. A

The Kelvin (K) is the SI unit of temperature, based on absolute zero, where the temperature is -273.15°C.

1. Respiration
2. Photosynthesis
3. Transpiration
4. Fermentation

Ans. B

Photosynthesis is the process by which plants use light energy to synthesize glucose and other organic compounds from carbon dioxide and water.

1. Oxygen
2. Carbon dioxide
3. Nitrogen
4. Hydrogen

Ans. B

Carbon dioxide (CO2) is a greenhouse gas that traps heat in Earth’s atmosphere, contributing to the greenhouse effect.

1. Isaac Newton
2. Albert Einstein
3. Max Planck
4. Niels Bohr

Ans. B

Albert Einstein is renowned for his contributions to the theory of relativity, which revolutionized our understanding of space, time, and gravity.

1. Carbon dioxide
2. Oxygen
3. Nitrogen
4. Hydrogen

Ans. B

Oxygen is essential for human respiration, as it is used in cellular respiration to produce energy (ATP).

1. Melting
2. Evaporation
3. Sublimation
4. Condensation

Ans. B

Evaporation is the process in which a liquid turns into a gas at temperatures below its boiling point, such as when water evaporates into water vapor.

1. Sa
2. Sn
3. So
4. Na

Ans. D

Sodium, a highly reactive element, is represented by the chemical symbol Na on the periodic table.

1. Geology
2. Paleontology
3. Archaeology
4. Astronomy

Ans. B

Paleontology is the scientific study of the history of life on Earth through the examination of plant and animal fossils and their environments.

1. Neon
2. Argon
3. Krypton
4. Radon

Ans. A

Neon gas is commonly used in fluorescent lighting and signs, producing the bright colors associated with neon signs.