3. What is hydro-electricity ?
4. Name any five modern machines that we use frequently in our daily life.
5. What do you know about the travellers ?
C. Short answer type questions.
1. Write down a short note on electronics.
2. How are the machines useful for farmers?
3. How did the use of iron change the life of early man?
Answers
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4. smartphone,refregerator,air conditioner,induction oven ,body massager
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hydro electrical means is electrical made by generators that are pushed by movement by water. mark me as brainlist
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