geomorphology & earth landforms section 10 MCQ Questions & Answers Detailed Explanation

Answer: (a)

Motored by Endogenic forces coming from within the earth.

Block Mountains are basically of two types, e. g. tilled block mountains having one steep side represented by fault scarp and one gentle side, and lifted block mountains represent real horst and are characterized by the flattened summit of tabular shape and very steep side slopes represented by two boundary fault scarps. Block mountains are also called horst mountains. Block mountains are found on all the continents, for example, Young block mountains around Albert Warner.

Answer: (a)

An isthmus is a narrow strip of land connecting two larger land areas, usually with water on either side.

The Panama Canal crosses the Isthmus of Panama, connecting the North Atlantic and Pacific Oceans; the Suez Canal connects the Mediterranean Sea and the Indian Ocean, cutting across the western side of an isthmus formed by the Sinai Peninsula. Strait is the sea counterpart of the isthmus.

Answer: (b)

Answer: (c)

Only the second statement is correct.

Answer: (a)

Due to gravity, our Earth has an atmosphere. Gravity causes the gases to be held close to the earth instead of escaping into outer space. Besides, gravity makes the atmosphere denser closer to the Earth – the upper layers push down against the lower layers.

Answer: (d)

As seen from the Earth, a solar eclipse occurs when the Moon passes between the Sun and Earth, and the Moon fully or partially blocks the Sun.

This can happen only at the new moon when the Sun and the Moon are in conjunction as seen from Earth. In a total eclipse, the disk of the Sun is fully obscured by the Moon. In partial and annular eclipses only part of the Sun is obscured.