(a) What is meant by biodegradable waste materials? Give two examples of biodegradable wastes.
(b) Which of the following materials are non-biodegradable? Aluminium wire, Tea leaves, Synthetic fibre, Wool
Write answers the following questions.
(a) Name the parts of the human circulatory systems.
(b) What is the function of the circulatory system?
(c) What is meant by excretion?
(d) Name the waste products formed in plants.
(e) How are waste products in plants given out?
Answer the Following
1. What is meant by solid waste?
2. What are the sources of Municipal solid waste?
3. Which types of material are present in Industrial waste?
4. Explain the 3 ‘R’s in solid waste management.
5. What are the household methods in solid waste management?
6. Explain the scientific methods in municipal solid waste management.
7. How is biomedical waste managed?