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प्रश्न
We should use petrol and diesel judiciously. Think why?
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उत्तर
We should use them carefully and judiciously as they are fossil fuels and one of our important resources of our Earth which are not available in plenty and require millions of years to form and regenerate.
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संबंधित प्रश्न
- Which of the vehicles do you think to give off smoke? Put a red mark on those.
- Which are the vehicles run without petrol and diesel?
What kind of problems can we face from noise of vehicles (honking)?
Besides oil, what else is found deep inside the earth?
The rates of petrol are different in each city. The rates of petrol and diesel in Delhi are given here. Look at the table and answer the questions.
| Oil | Rate of one litre in 2002 (Oct) | Rate of one litre in 2007 (Oct) | Rate of one litre in 2014 (Oct) |
| Petrol | Rs 29.91 | Rs 43.52 | Rs 67.86 |
| Diesel | Rs 18.91 | Rs 30.48 | Rs 58.97 |
- In 2014, as compared to 2007 the rate of petrol went up by ______ rupees. The rate of diesel increased by ______ rupees.
What would happen if you don’t get petrol or diesel for a week in your village or town?
Do you know anyone who collects dry wood or leaves to be used for lighting a chulha?
If they cook food using wood or upla (cow dung cakes), what difficulties do they face due to smoke?
Guess the use of which fuel would increase and which would decrease in the next 10 years.
While making the design, who did you plan to take care of:
| old people | ____________ |
| children | ____________ |
| those who cannot see? | ____________ |
