Assertion (A): In the course of the earth's movement around the sun, the North Pole remains inclined towards the sun for a part of the year while the South Pole is tilted away from it.

Reason (R): The earth rotates on an inclined axis in an elliptical path around the sun.

1. Both A and R are true and R is the correct explanation of A.
2. Both A and R are true but R does not explain A.
3. A is true but R is false.
4. A is false but R is true.

Which of the following is true about the perihelion position of the earth?

1. It is farthest from the sun.
2. It occurs on 3 January.
3. The speed of revolution is the least.
4. All of the above.

Perihelion : 147.4 million km :: …………… : 152 million km

1. Aphelion
2. Equinox
3. Solstice
4. All of the above

Which of the following is true about the aphelion?

1. Occurs on 4 July.
2. Summer in northern hemisphere
3. Speed of revolution is maximum
4. All of the above.