Sources of Pollution:
(a) Air Pollution: Primarily from vehicular emissions, industrial activities, fossil fuel combustion, and agricultural practices like crop burning.

(b) Water Pollution: Arises from industrial discharge, untreated sewage, agricultural runoff containing chemicals, and improper waste disposal.

(c) Soil Pollution: Results from industrial waste, agricultural chemicals, improper hazardous waste disposal, and landfill contamination.

Steps to Reduce Pollution:
1. Regulations and Policies: Governments implement laws to control emissions, manage waste, and enforce environmental standards.

2. Technology Implementation: Adoption of cleaner technologies, waste treatment plants, and efficient agricultural practices.

3. Awareness Campaigns: Educational programs and awareness campaigns on responsible waste disposal and environmental conservation.

4. Green Initiatives: Encouraging renewable energy use and promoting afforestation for pollution reduction.

5. Waste Management: Programs promoting recycling, waste segregation, and proper disposal methods.

Further Measures:
1. Stricter Enforcement: Enhancing enforcement of environmental laws for better compliance.

2. Clean Energy Investment: Increased investment in renewable energy sources to decrease reliance on fossil fuels.

3. Sustainable Practices: Promoting sustainable agriculture and reducing chemical inputs.

4. Community Engagement: Involving communities in cleanup drives and pollution monitoring.

5. Research Development: Investing in innovative solutions and sustainable technologies for pollution control.

These comprehensive measures, encompassing stricter regulations, technological advancements, community engagement, and sustainable practices, aim to effectively combat environmental pollution.