Particulate Matter (PM) is a term used to describe any solid or liquid particles that are suspended in the air. These particles come from a variety of sources, including natural sources (e.g., dust, pollen, and volcanic ash) and human activities (e.g., emissions from burning fuels, manufacturing processes, and construction activities).
Solved Model Question Paper for Class 12th Environmental Science NCERT (2023)
What are the different types of Soil found in India?
Answer: The different types of soil found in India are:
1. Alluvial Soil: These are rich in humus and are found in the plains of the major river systems.
2. Black Soil: Also known as Regur, this soil is rich in calcium carbonate and is found in the Deccan Plateau.
3. Red Soil: This soil is largely composed of ferric oxide and is found in the areas of the Eastern and Western Ghats.
4. Laterite Soil: This soil is rich in iron and is found in the Eastern and Western Ghats.
5. Mountain Soil: This is found in the Himalayas and the hilly areas of Northeast India.