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प्रश्न
Distinguish between.
Man made material and natural material.
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उत्तर
| S. No. | Natural materials | Man-made materials |
| 1. | Natural materials are those materials, which occur in nature on their own. | Man-made materials are a type of material that doesn't occur naturally and is made by humans. |
| 2. | They are both renewable and non-renewable in nature. | They are non-renewable in nature. |
| 3. | They help in the economic development of people. | They help in economic as well as social development. |
| 4. | They are eco-friendly. | They are not environmentally friendly. |
| 5. | They are not manufactured in factories. | They are manufactured in factories. |
| 6. | Examples: wood, rock, minerals, water, soil, etc. | Examples: glass, plastic, artificial thread, thermocol, etc. |
संबंधित प्रश्न
Should the handle and bristles of a tooth brush be made of the same material? Explain your answer.
Describe an activity to show that thermoplastic is a poor conductor of electricity.
Give example of material that can be used again.
Can you replace the following packaging material with those which can be recycled or reused.
Glass tumblers packed in thermocol box.
Look at the following picture and explain what is happening.
PVC (polyvinyl chloride) is a thermoplastic and is used for making toys, chappals, etc. Bakelite is a thermosetting plastic and is used for making electrical switches, handles of various utensils, etc. Can you write the major difference between these two types of plastics?
Edmund Alexander Parkes was the creator of the first plastic called ______.
What are the drawbacks of plastics?
The used plate is easy to recycle.
Answer the following by rearranging the jumbled letters :
One-time use plastics are also known as ______ plastics.
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