Q1. Which of the following
is the largest planet in our solar system?
a) Earth
b) Mars
c) Jupiter
d) Venus
✅ Answer:
c) Jupiter
Q2. What is the primary
source of energy for the Earth?
a) Moon
b) Sun
c) Stars
d) Earth's core
✅ Answer:
b) Sun
Q3. The SI unit of force is:
a) Pascal
b) Joule
c) Newton
d) Watt
✅ Answer:
c) Newton
Q4. What is the unit of
electric current?
a) Volt
b) Ampere
c) Coulomb
d) Ohm
✅ Answer:
b) Ampere
Q5. Newton's First Law of
Motion is also known as:
a) Law of Acceleration
b) Law of Inertia
c) Law of Action-Reaction
d) Law of Gravity
✅ Answer:
b) Law of Inertia
Q6. The acceleration due to
gravity on the surface of the Earth is approximately:
a) 8.9 m/s²
b) 9.8 m/s²
c) 10.5 m/s²
d) 12.2 m/s²
✅ Answer:
b) 9.8 m/s²
Q7. Which of the following
has the highest pressure?
a) A person standing on one foot
b) A person lying down
c) A person sitting on a chair
d) A person wearing snowshoes
✅ Answer:
a) A person standing on one foot
Q8. Energy stored in a
stretched rubber band is:
a) Kinetic Energy
b) Potential Energy
c) Heat Energy
d) Sound Energy
✅ Answer:
b) Potential Energy
Q9. Which type of mirror is
used in a car’s rearview mirror?
a) Plane mirror
b) Concave mirror
c) Convex mirror
d) Parabolic mirror
✅ Answer:
c) Convex mirror
Q10. The speed of
sound is maximum in:
a) Air
b) Water
c) Steel
d) Vacuum
✅ Answer:
c) Steel
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Q127. The main source
of renewable energy is:
a) Coal
b) Petrol
c) Solar power
d) Natural gas
✅ Answer:
c) Solar power
Q128. Deforestation
leads to an increase in:
a) Oxygen level
b) Carbon dioxide level
c) Soil fertility
d) None of the above
✅ Answer:
b) Carbon dioxide level
Q129. Sound cannot
travel through:
a) Solids
b) Liquids
c) Gases
d) Vacuum
✅ Answer:
d) Vacuum
Q130. The speed of
sound in air at room temperature is approximately:
a) 330 m/s
b) 1500 m/s
c) 5000 m/s
d) 3 × 10⁸ m/s
✅ Answer:
a) 330 m/s
Q131. The process in
which a substance reacts with oxygen to release energy is called:
a) Oxidation
b) Reduction
c) Combustion
d) Neutralization
✅ Answer:
c) Combustion
Q132. Which gas is
released during photosynthesis?
a) Oxygen
b) Carbon dioxide
c) Hydrogen
d) Nitrogen
✅ Answer:
a) Oxygen
Q133. The primary
function of the lungs is to:
a) Pump blood
b) Filter waste
c) Exchange gases
d) Digest food
✅ Answer:
c) Exchange gases
Q134. The smallest bone
in the human body is found in the:
a) Leg
b) Arm
c) Ear
d) Skull
✅ Answer:
c) Ear
Q135. Biodegradable
waste includes:
a) Plastic
b) Glass
c) Paper
d) Metal
✅ Answer:
c) Paper
Q136. The best method
to dispose of plastic waste is:
a) Incineration
b) Dumping in landfills
c) Recycling
d) Burning in open air
✅ Answer:
c) Recycling
Q137. The SI unit of
electric power is:
a) Ohm
b) Watt
c) Ampere
d) Volt
✅ Answer:
b) Watt
Q138. The device that
converts chemical energy into electrical energy is:
a) Generator
b) Transformer
c) Battery
d) Motor
✅ Answer:
c) Battery
Q139. Which of the
following is a chemical fertilizer?
a) Urea
b) Compost
c) Manure
d) Vermicompost
✅ Answer:
a) Urea
Q140. DDT is a type of:
a) Fertilizer
b) Pesticide
c) Herbicide
d) Fungicide
✅ Answer:
b) Pesticide
Q141. The female
reproductive organ in flowering plants is called:
a) Stamen
b) Carpel
c) Petal
d) Sepal
✅ Answer:
b) Carpel
Q142. The process by
which plants lose water in the form of vapor is called:
a) Photosynthesis
b) Transpiration
c) Respiration
d) Germination
✅ Answer:
b) Transpiration
Q143. Which gas is
known as a greenhouse gas?
a) Oxygen
b) Carbon dioxide
c) Argon
d) Helium
✅ Answer:
b) Carbon dioxide
Q144. The Kyoto
Protocol is related to:
a) Ozone layer protection
b) Climate change
c) Water conservation
d) Deforestation
✅ Answer:
b) Climate change
Q145. Which of the
following is used as a nuclear fuel?
a) Uranium
b) Copper
c) Aluminium
d) Lead
✅ Answer:
a) Uranium
Q146. The energy
produced in nuclear reactors is due to:
a) Combustion
b) Fission
c) Fusion
d) Radiation
✅ Answer:
b) Fission
Q147. Which chemical is
used to adulterate milk?
a) Formalin
b) Citric acid
c) Sodium chloride
d) Baking soda
✅ Answer:
a) Formalin
Q148. Consumption of
adulterated food can lead to:
a) Improved immunity
b) Various diseases
c) Faster digestion
d) Stronger bones
✅ Answer:
b) Various diseases
Q149. The first human
spaceflight program of ISRO is called:
a) Mangalyaan
b) Gaganyaan
c) Chandrayaan
d) Aditya
✅ Answer:
b) Gaganyaan
Q150. India’s first
solar mission launched by ISRO is:
a) Chandrayaan-3
b) Aditya-L1
c) Mangalyaan-2
d) RISAT
✅ Answer:
b) Aditya-L1
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