Water pollution is defined as the undesirable change in the physical, chemical, or biological properties of water due to addition of pollutants that make water unfit for human consumption. Industrial waste containing high amount of acids, alkalis and heavy metals cause an adverse effect on the marine life. Based on the above information think of the answers to the following questions.
Who started Ganga Action Plan?

Explanation

**Step-by-Step Solution:**

1. **Understanding Water Pollution**: Water pollution refers to the undesirable changes in the physical, chemical, or biological properties of water caused by pollutants. These changes make water unsafe for human consumption and can harm marine life.

2. **Identifying the Problem**: The Ganga River, a significant river in North India, has been heavily polluted due to untreated wastewater being released from nearby towns and cities. This pollution has led to a decline in the river's health and its ecosystem.

3. **Recognizing the Need for Action**: To address the increasing pollution levels in the Ganga River, there was a need for a structured plan to control the sources of pollution and restore the river's ecosystem.

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