Q5. Short answer type questions (Any Five)
1. What is thermosetting plastic?
2. What are the major groups of micro organism?
3. What is irrigation?
4. Explain why some fibers are called synthetic.
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1. Thermosetting plastics are made up from long chains of molecules that are cross-linked. They have a very rigid structure.
2. The major groups of micro organism are:-
Bacteria, Fungi, Protozoa, Algae and Virus
3. Irrigation is the process of applying controlled amounts of water to plants at needed intervals.
4. Some fibres are called as synthetic fibers because these are manmade fibers prepared by using chemicals. These are made of small units that join together to form long chains. Some of the examples of synthetic fibres are nylon, rayon, acrylic, polyester etc.
Explanation:
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