C. SHORT-ANSWER QUESTIONS (TYPE I): Answer in a sentence or two.
1. Differentiate between renewable and non-renewable resources, giving two examples of each.
2. What are fossil fuels?
3. Why should fossil fuels not be wasted?
4. How is coke obtained?
5. What are the advantages of using natural gas as a fuel?
6. Why is there a rapid increase in our energy consumption?
7. Why are fossil fuels our most important source of energy today?
8. What is the main purpose of petroleum refining?
Answers
Answer:
renewable resources are those resources that get renewed or replenish within a short period of time . example = wind &water.
non renewable resources are those resources that cannot get renewed or take millions of years to form . example coal and petroleum
Answer:
1. Renewable resources are resources which can be used again and again and which do not replenish from our nature example : water ,sunlight
on the other hand Non - renewable resources are
which cannot be used again and again and can replenish from our nature examples:
fossil fuels
2. Fossil fuels are non renewable resources of energy which are found inside the earth 's crust
They are formed by the decaying matter of animals who died and got burried millions of years ago .
3. Fossil fuels are non renewable resources which means they can replenish from our nature and to
form again they 'll take many years that is why wise use of fossil fuels is suggested.
4 . Coke is a blakish grey form of coal which has great ammount of carbon in it. It gives a great deal of energy. Now coke is formed by destructive distillation of coal , in this process coal is burnt in absence of oxygen.
5. Natural gas is also a fossil fuel it is found above the petroleum in petroleum wells .
Its advantages are :
- it is cheaper than other fuels
- it provides us with good deal of energy
- It is present in sufficient ammounts so it will eventually help in preserving other fossil fuels
6. Increase in population will cause increase in energy consumption as more people will require more electricity ,more vehicles etc.These are few reasons for Rapid growth in energy consumption
7 .Fossil fuels are nowdays used everywhere and
are used by everyone this is important source of energy as it provides us with great deal of energy
and some of them do it in very little ammounts.
8. Main purpose of petroleum refining is to seperate out each and every useful part of petroleum which initially is crude oil . Refining of this petroleum provides us with many fossil fuel such as petrol ,disel, gas etc.