1. What is the powerhouse of the cell?
A. Nucleus
B. Mitochondria
C. Ribosome
D. Endoplasmic Reticulum
Answer: B) Mitochondria
Rationale: Mitochondria are known as the powerhouse of the cell because
they generate most of the cell's energy in the form of ATP.
2. The process by which plants release water vapor is called?
A. Transpiration
B. Evaporation
C. Condensation
D. Precipitation
Answer: A) Transpiration
Rationale: Transpiration is the process by which plants release water vapor
through small openings in their leaves called stomata.
3. Which of the following is the largest continent by area?
A. Africa
B. Asia
C. North America
,D. Europe
Answer: B) Asia
Rationale: Asia is the largest continent in terms of both area and
population, covering about 30% of the Earth‟s land area.
4. The chemical formula of methane is?
A. CH4
B. C2H6
C. CO2
D. C3H8
Answer: A) CH4
Rationale: The chemical formula for methane is CH4, indicating one carbon
atom bonded to four hydrogen atoms.
5. Which of the following is the longest bone in the human body?
A. Femur
B. Humerus
C. Tibia
D. Radius
Answer: A) Femur
Rationale: The femur, or thigh bone, is the longest and strongest bone in
the human body.
6. Which vitamin is primarily obtained from sunlight?
, A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin B12
Answer: C) Vitamin D
Rationale: Vitamin D is produced in the skin when exposed to sunlight, and
it is essential for calcium absorption.
7. What is the smallest planet in our solar system?
A. Mars
B. Earth
C. Mercury
D. Venus
Answer: C) Mercury
Rationale: Mercury is the smallest planet in our solar system, even smaller
than some of the moons of other planets.
8. Who invented the light bulb?
A. Nikola Tesla
B. Thomas Edison
C. Alexander Graham Bell
D. James Watt
Answer: B) Thomas Edison
A. Nucleus
B. Mitochondria
C. Ribosome
D. Endoplasmic Reticulum
Answer: B) Mitochondria
Rationale: Mitochondria are known as the powerhouse of the cell because
they generate most of the cell's energy in the form of ATP.
2. The process by which plants release water vapor is called?
A. Transpiration
B. Evaporation
C. Condensation
D. Precipitation
Answer: A) Transpiration
Rationale: Transpiration is the process by which plants release water vapor
through small openings in their leaves called stomata.
3. Which of the following is the largest continent by area?
A. Africa
B. Asia
C. North America
,D. Europe
Answer: B) Asia
Rationale: Asia is the largest continent in terms of both area and
population, covering about 30% of the Earth‟s land area.
4. The chemical formula of methane is?
A. CH4
B. C2H6
C. CO2
D. C3H8
Answer: A) CH4
Rationale: The chemical formula for methane is CH4, indicating one carbon
atom bonded to four hydrogen atoms.
5. Which of the following is the longest bone in the human body?
A. Femur
B. Humerus
C. Tibia
D. Radius
Answer: A) Femur
Rationale: The femur, or thigh bone, is the longest and strongest bone in
the human body.
6. Which vitamin is primarily obtained from sunlight?
, A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin B12
Answer: C) Vitamin D
Rationale: Vitamin D is produced in the skin when exposed to sunlight, and
it is essential for calcium absorption.
7. What is the smallest planet in our solar system?
A. Mars
B. Earth
C. Mercury
D. Venus
Answer: C) Mercury
Rationale: Mercury is the smallest planet in our solar system, even smaller
than some of the moons of other planets.
8. Who invented the light bulb?
A. Nikola Tesla
B. Thomas Edison
C. Alexander Graham Bell
D. James Watt
Answer: B) Thomas Edison
