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प्रश्न
Draw a design of a boat that skims trash off the surface of a river, lake, or ocean. Label the parts and give your invention a catchy name.
- What kind of vessel could do the job?
- What parts would it have?
- How would it move?
- How could it tell the difference between trash and other objects, such as animals and seaweed?
- How would it store and dump the trash?
- Could your machine double as a beach sweeper, sifting trash from sand?
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उत्तर
Do it yourself.
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