Q1. In a terrestrial ecosystem, how much solar energy do green plants absorb on their leaves and convert it into food energy?
(A) 1%
(B) 5%
(C) 10%
(D) 20%
Answer: (A) 1%

Q2. Which element has a higher atomic number than potassium?
(A) Sulfur
(B) Chlorine
(C) Calcium
(D) Argon
Answer: (C) Calcium

Q3. The smoke emitted from automobiles generates a toxic pollutant called:
(A) Carbon Dioxide
(B) Sulfur Dioxide
(C) Carbon Monoxide
(D) Nitrous Oxide
Answer: (C) Carbon Monoxide

Q4. Which of the following is the unit of magnetic field strength?
(A) Ohm
(B) Gauss
(C) Tesla
(D) Weber
Answer: (C) Tesla

Q5. Which of the following is used as a magnifying lens?
(A) Bifocal Lens
(B) Concave Lens
(C) Both Concave and Convex Lenses
(D) Convex Lens
Answer: (D) Convex Lens

Q6. Which nutrient is essential for strong connective tissue and a strong immune system?
(A) Fiber
(B) Vitamin K
(C) Vitamin C
(D) Fluoride
Answer: (C) Vitamin C

Q7. Which of the following is a copper ore?
(A) Limonite
(B) Calamine
(C) Magnesite
(D) Malachite
Answer: (D) Malachite

Q8. What is the name of the toilet used by multiple households in a single structure or plot?
(A) Community Toilet
(B) Individual Toilet
(C) Shared Toilet
(D) Imported Toilet
Answer: (C) Shared Toilet

Q9. Which of the following is a characteristic feature of Ascomycetes?
(A) Hyphae
(B) Spores
(C) Zoospores
(D) Ascospores
Answer: (D) Ascospores

Q10. The remarkable hardness of bone is attributed to the presence of:
(A) Organic Hydroxyapatites
(B) Glycoproteins
(C) Fibers
(D) Cartilage
Answer: (A) Organic Hydroxyapatites