CBSE Class-9 Social-Science: Questions 371 - 377 of 472
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Question number: 371
Question number: 372
Question number: 373
Question number: 374
Question number: 375
Question number: 376
Which one of the following is benefit of lakes to human beings?
- A lake helps to regulate the flow of a river
- Lakes can be used for developing hydel power.
- Lakes maintain the aquatic ecosystem
- It enhances the natural beauty.
3 and 4 only
2 and 3 only
1 and 2 only
1, 2, 3 and 4