(ii) We should not pool car while going to some same place to save fuel.
Ans: False
Carpooling means sharing a ride with others going to the same place. This helps save fuel and reduces air pollution, so we should always try to carpool whenever possible.
(iii) Car is more fuel efficient than bus.
Ans: False
A bus can carry many people at the same time, while a car usually carries only a few. So, when we compare fuel usage per person, a bus is more fuel-efficient than a car.
(iv) The maximum use of cars, scooters etc. cause pollution.
Ans: True
Vehicles that use petrol or diesel release harmful smoke into the air, leading to air pollution. More vehicles mean more pollution, which affects our health and the environment.
(v) Petroleum should be used carefully to save fuel as well as environment.
Ans: True
Petroleum is a non-renewable resource, meaning it will finish if we use it too much. Using it wisely helps save fuel for the future and reduces pollution in the environment.
(i) From where do we get petroleum?
Ans: We get petroleum from deep down under the ground.
(ii) How bus is more fuel efficient than car?
Ans: A bus can carry 40 to 50 passengers at a time where as car carries only.
(iii) Write full form of LPG and CNG.
Ans: Full form of
(iv) How is petroleum formed?
Ans: It is formed naturally but very slowly. It takes thousands years to form.
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(i) How can we save petrol?
Ans: We can save petrol by following ways:-
(ii) How do we pump out petroleum from the deep?
Ans: We can pump out petroleum like we pump out water by using bore well. We need big machines and pipes to pump it out and clean it.
(iii) How many villagers in India use dry twig, wood and cow dung? And why?
Ans: Nearly 2/3 people in our country use these things. They use these things for cooking food, keeping warm, heating water and for lightening.
(iv) Write some uses of petroleum?
Ans: It is used to run vehicles.
(v) Why is there need to clean petroleum?
Ans: This oil is smelly, thick and dark coloured liquid. It has kerosene oil, wax, diesel, engine oil, grease and coal tar and petrol. That is why petroleum needs to be cleaned and all the things are to be separated.
(vi) Why should we use LPG in kitchen and CNG in vehicles?
Ans: Both LPG and CNG are smoke free gas. They do not spread pollution. So we should use these gases in our kitchen and vehicles respectively.
(vii) What kind of problems do we face because of the increasing number of vehicles on the roads?
Ans: The increasing number of vehicles causes traffic jam.
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