CBSE Class 8 Science
Question 12 of 12
Keeping Time with the Skies — Question 12
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Question On which periodic phenomenon are the following measures of time based:
(i) day
(ii) month
(iii) year?
(i) Day → Earth’s rotation (ii) Month → Moon’s revolution (phases of the Moon) (iii) Year → Earth’s revolution around the Sun. Class 8 Keeping Time with the Skies Question Answer (Activities) Activity 11.1: Let us Explore (Pages 171-172) Documenting Changes in the Moon’s Appearance Analysis Questions: