31. The Science of Celestial bodies is known as:
A. Agronomy
B. Coprology
C. Astrology
D. Astronomy
✅ The correct answer is option Astronomy.
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32. Sun’s diameter is:
A. 3 Million Km
B. 2.5 Million Km
C. 1.4 Million Km
D. 1 Million Km
✅ The correct answer is option 1.4 Million Km.
33. The layer of atmosphere “in which we live is called:
A. Stratosphere
B. Photosphere
C. Lithosphere
D. lonosphere
✅ The correct answer is option Photosphere.
34. Which area is known as World’s earthquake belt?
A. Pacific’s ring of fire
B. Andes Range
C. Sham-el-Sheikh.Egypt
D. Central and Atlantic Ridge
✅ The correct answer is option Pacific ring of fire.
36. Vitamin A is essential for:
A. Skeletal growth
B. Preventing night blindness
C. Healthy epithelial Issue
D. All of these
✅ The correct answer is option Preventing night blindness.
37. Which rocks make the earth’s surface or crust:
A. Sedimentary
B. Igneous
C. Metamorphic
D. All of these
✅ The correct answer is option All of these.
38. Temporary storage place for information in a computer is called:
A. Back up
B. Buffer
C. Binary file
D. Data recorder
✅ The correct answer is option Buffer.
39. The continuous movement of continents is called Continental:
A. Shakes
B. Drift
C. Motion
D. Move
✅ The correct answer is option Drift.
40. Which part of the brain contains center for the control of respiration , heart beat and blood pressure?
A. Medulla Oblongata
B. Medulla
C. Cerebellum
D. Cerebrum
✅ The correct answer is option Medulla.