geomorphology & earth landforms section 1 MCQ Questions & Answers Detailed Explanation

Answer: (d)

An equator is the intersection of a sphere’s surface with the plane perpendicular to the sphere’s axis of rotation and containing the sphere’s center of mass. Notably, the Equator refers to the Earth’s equator, per above: an imaginary line on the Earth’s surface equidistant from the North Pole and the South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere.

Other planets and spherical astronomical bodies have equators similarly defined. The length of the Equator is roughly 40,075 kilometers.

Answer: (b)

Creep is the imperceptibly slow, down slope movement of soil and earth materials.

Answer: (c)

The most powerful agents of marine or coastal erosion are waves. Features associated with coastal erosion are capes and bays; cliffs and wave-cut platforms; cave, arch, stack and stump; goes and gloups.

Answer: (d)

Earthquakes result from the sudden release of energy in the Earth’s crust that creates seismic waves. Most occur along plate boundaries.

Tectonic earthquakes occur anywhere in the earth where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane.

Answer: (b)

Answer: (c)

A magnetic Meridian is a line on the earth’s surface approximating a great circle passing through the north and south magnetic poles.

It can be taken as the horizontal component of magnetic force lines along the surface of the earth. A compass needle is parallel to the magnetic meridian.