Exercise 1(ch-1.Earth as a Planet) For class 9th (icse board)
Q. 1. Name all the planets in solar system. State the Earth's position both according to size and increasing distance from sun.
Q. 2. Why the Earth is a unique planet?Give reasons.
Q. 3. Define and write it's significance -
I. Atmosphere ii. Lithosphere iii. Hydrosphere iv. Biosphere
Q. 4. What is Antipodal Balance?
Q. 5. What is the shape of the earth? Give 4 evidences.
Q. 6. Who is the first person to circumnavigate the earth?
Q. 7. What is the (i) diameter (ii) circumference of the earth.
Q. 8. Who measured the Earth's circumference first and how?
Q. 9. What is lunar eclipse?
Q. 10. Why is the same side of moon visible from the earth?
Q. 11. What is lunar month?
Q. 2. Why the Earth is a unique planet?Give reasons.
Q. 3. Define and write it's significance -
I. Atmosphere ii. Lithosphere iii. Hydrosphere iv. Biosphere
Q. 4. What is Antipodal Balance?
Q. 5. What is the shape of the earth? Give 4 evidences.
Q. 6. Who is the first person to circumnavigate the earth?
Q. 7. What is the (i) diameter (ii) circumference of the earth.
Q. 8. Who measured the Earth's circumference first and how?
Q. 9. What is lunar eclipse?
Q. 10. Why is the same side of moon visible from the earth?
Q. 11. What is lunar month?
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