geomorphology & earth landforms section 3 MCQ Questions & Answers Detailed Explanation

Answer: (c)

Hachures are short disconnected lines drawn on the map to depict the slope of the ground surface. They are drawn in rows; each row being disconnected from the other.

They are short and closely spaced for steep slopes and relatively long and widely spaced for gentler slopes. Hachures are not drawn for levelled areas, such as a flat valley or a plateau top.

Answer: (a)

Answer: (d)

The equator passes through 13 countries:

1. Ecuador,
2. Colombia,
3. Brazil,
4. Sao Tome & Principe,
5. Gabon,
6. Republic of the Congo,
7. Democratic Republic of the Congo,
8. Uganda,
9. Kenya,
10. Somalia,
11. Maldives,
12. Indonesia and
13. Kiribati.

Answer: (d)

Gneiss is a high-grade metamorphic rock formed by the metamorphosis of granite which is a sedimentary rock. Gneiss is typically associated with major mountain building episodes.

It is often foliated (composed of layers of sheet-like planar structures), characterized by alternating darker and lighter coloured bands, called “gneissic banding”.

Answer: (d)

When magma solidifies under the earth’s surface, it forms plutonic rock bodies or plutons. The most common rock types in plutons are granite, granodiorite, tonalite, monzonite, and quartz diorite.

Answer: (d)