51. The Harappan civilization had a well-planned urban layout with:
A) Wide streets
B) Drainage systems
C) Public baths
D) All of the above
52. The decline of the Harappan civilization is attributed to:
A) Invasion by foreign tribes
B) Climate change
C) Internal conflicts
D) All of the above
53. The Indus Valley Civilization is also referred to as the:
A) Mesopotamian Civilization
B) Sumerian Civilization
C) Egyptian Civilization
D) Harappan Civilization
54. The period before the Indus Valley Civilization is known as:
A) Vedic period
B) Harappan period
C) Mesolithic period
D) Paleolithic period
55. The Paleolithic period is also known as the:
A) Old Stone Age
B) New Stone Age
C) Copper Age
D) Bronze Age