MCQ Science Curiosity Chapter 11 Class 8 CBSE Board

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Keeping Time with the Skies

1. Why do lunar calendars fall out of sync with seasons?

Question 1 of 20

2. How many lunar months are there in a lunar year?

Question 2 of 20

3. What is added to a solar calendar every four years to account for the extra time in a solar year?

Question 3 of 20

4. Why are leap years skipped every 100 years in the Gregorian calendar?

Question 4 of 20

5. What is the name of the calendar that combines lunar and solar cycles?

Question 5 of 20

6. What is an intercalary month in a luni-solar calendar?

Question 6 of 20

7. When does the Indian National Calendar begin each year?

Question 7 of 20

8. What is the basis for the Indian National Calendar?

Question 8 of 20

9. Which festival is celebrated on the new Moon of Kartika?

Question 9 of 20

10. Why do festivals like Diwali shift dates in the Gregorian calendar?

Question 10 of 20

11. Which festival follows a solar sidereal calendar?

Question 11 of 20

12. What is the purpose of the Rashtriya Panchang published by the Positional Astronomy Center?

Question 12 of 20

13. What is the name of the period when the Sun moves northward from December to June?

Question 13 of 20

14. What is the approximate duration of a sidereal year compared to a tropical year?

Question 14 of 20

15. Who chaired the Calendar Reform Committee in India?

Question 15 of 20

16. What is the primary function of ISRO’s Cartosat satellites?

Question 16 of 20

17. Which ISRO mission studies stars and celestial objects?

Question 17 of 20

18. How long does it take for most artificial satellites to complete one orbit around Earth?

Question 18 of 20

19. What is the primary purpose of artificial satellites?

Question 19 of 20

20. What is the name of the ISRO platform that uses satellite images to show terrain and land use?

Question 20 of 20


 

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