ICSE Class 9 Geography — Flashcards for Quick Revision

A: Earth is unique because it is the only planet known to harbour life. Its distance from the Sun, its atmosphere, and its water cycle make life possible.

A: The word planet comes from a Greek word meaning wanderer. Planets are called wanderers because they revolve round the Sun.

A: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.

A: Earth is an oblate spheroid, called the Geoid. It is flattened at the poles and slightly bulged at the equator because of centrifugal force and gravity. A globe shows this shape best.

A: The Equator is the 0° latitude. It is an imaginary circle equidistant from the poles and passes through the centre of the Earth. It divides Earth into the Northern Hemisphere and the Southern Hemisphe

A: Latitude is the angular distance of a place north or south of the Equator, measured from the centre of the Earth. It is shown by parallels of latitude.

A: The two main movements of the Earth are rotation and revolution. Rotation is the spinning of the Earth on its axis, and revolution is the movement of the Earth around the Sun in a fixed path.

A: Rotation is the movement of the Earth on its axis from west to east once in 24 hours. It causes day and night. The Earth also turns through 360 degrees in 23 hr 56 min 4.09 sec, which is called the si

A: Day and night occur because the Earth rotates on its axis. The side facing the Sun has day, and the side away from the Sun has night. As the Earth keeps turning, different places move into sunlight an