Keeping Time with the Skies Class 8 Assertion and Reason Questions

Keeping Time with the Skies Class 8 Assertion and Reason Questions

Keeping Time with the Skies Class 8 Assertion and Reason Questions

Following questions are of Assertion (A), Reason (R) type questions. Choose the correct answer from the following:

(a) Both A and R are true, and R is the correct explanation of A.

(b) Both A and R are true, but R is not the correct explanation of A.

(c) A is true, but R is false.

(d) A is false, but R is true.

1. (A): The phases of the Moon are caused by the relative positions of the Earth, Moon, and Sun.

(R): The Moon emits its own light, which changes as it moves in its orbit around the Earth.

Answer:

(c) A is true, but R is false.

2. (A): A lunar calendar is based on the cycles of the Moon.

(R): The lunar calendar has the same number of days as the solar calendar.

Answer:

(c) A is true, but R is false.

3. (A): The Moon can be seen during the day.

(R): The Moon is always in the same position relative to the Earth and Sun.

Answer:

(c) A is true, but R is false.

4. (A): Tides on Earth are influenced by the Moon's gravitational pull.

(R): Tides occur only during the full Moon and new Moon phases.

Answer:

(c) A is true, but R is false.

5. (A): The Indian National Calendar is based on the solar calendar.

(R): The Indian National Calendar was adopted to provide a uniform calendar for the entire country.

Answer:

(d) A is false, but R is true.