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प्रश्न
Distinguish between.
Man made material and natural material.
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
Fill in the blanks with appropriate words.
Like synthetic fibres, plastic is also a _______
Explain the difference between thermoplastic and thermosetting plastics.
Can you replace the following packaging material with those which can be recycled or reused.
Glass tumblers packed in thermocol box.
______ are used to identify different types of plastics.
Look at the following picture and explain what is happening.
Nandhini brings his lunch every day to school in a plastic container which has resin code number 5. The container is made of ______.
Plastics have completely occupied our life. Why?
What are the drawbacks of plastics?
Polycarbonate (PC) plastic contains ______.
Assertion (A): PVC is an unsafe plastic.
Reason (R): Burning PVC releases dioxins, a most toxic chemical.
