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प्रश्न
Besides oil, what else is found deep inside the earth?
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उत्तर
Besides oil, many minerals are found deep inside the earth, e.g. coal, iron, copper, bauxite, gold, diamond, potassium, magnesium and zinc, etc.
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संबंधित प्रश्न
How do your family members go to work from home?
What problems can we have from smoke coming out of vehicles?
What kind of problems can we face from noise of vehicles (honking)?
What are the benefits, if we switch off the engine of the vehicles at the red light on the road?
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.
- Where all is an oil used?
Suggest some ways to save oil.
If they cook food using wood or upla (cow dung cakes), what difficulties do they face due to smoke?
1. In the year 1976, out of 100 how many houses used uple and wood?
2. Which was the fuel used the least in 1976?
3. In 1976, LPG and kerosene were used in ______ houses, and in 1996 this increased to ______. This means that in twenty years their use increased by________%.
4. Out of 100, how many houses were using electricity in 1996?
5. Which fuel was used the least in 1996? What percentage of houses used it in the year 1976?
Guess the use of which fuel would increase and which would decrease in the next 10 years.
