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Answer 1

Answer:

1. The plants depend on animals mainly for the supply of carbon dioxide. Explanation: The plants give out oxygen during the process of photosynthesis. The animals take in this oxygen and give out carbon dioxide which is again taken in by the plants for preparing food using the process of photosynthesis.

2.Electric fuse is a device which is used to limit the current in an electric circuit. The fuse safeguards the circuit and the electrical appliances from being damaged. The fuse wire is generally an alloy of lead and tin. It has a low melting point and breaks the circuit if the current exceeds a safe value.

4. is in above pic

5.When an electric current passes through a conductor (like a high resistance wire) the conductor becomes hot after some time and produces heat. This is called heating effect of Electric Current. Example 1. A bulb becomes hot after its use for some time. This is because of heating effect of electric current.

Explanation:

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