The Indus and Ganges River Valleys(National Geography)

Describe the geography of the Indus and Ganges river valleys.
The beginning of the Indus River is in the Himalayas and than flows down to the Arabian Sea. The Ganges river follows along the Himalayas and then enters into the Bay of Bengal. The reason that the rivers grow larger as they go along is because as they flow through or along the Himalayas lots of melted ice seeps into the rivers making them larger. India has two different monsoon seasons; summer and winter. The summer monsoons begin mid-June, and bing in wet, moistened air from the Indian Ocean. The winter monsoons start in October and end around May, bringing in dry air form the north-east area and spread it throughout India and its surrounding countries. The summer monsoons season has many benefits such as farmers not being able to grow their crops without it, and agriculture is a vital part of India because 70% of it relies on agriculture. But though they benefit from the rain the monsoons sometimes lead to massive and destructive flooding. .

How did geography influence the building of Mohenjo-Daro similar to modern cities?

Due to Mohenjo-Daro's geography the inhabitance of the area built their homes and city above ground level. Also they built a citadel on a hill and probably surrounded it by a wall. They didn't only build a citadel though, sewage and drainage systems ran throughout the area taken all the waste and excess water out of the city. This probably kept the most important places from flooding.