Question 11 MarkPetrol and diesel are obtained from under the Earth.AnswerTrueView full question & answer→
Question 21 MarkPollution is not spread when wood and cow dung cakes are used as fuel.AnswerfalseView full question & answer→
Question 31 MarkSmoke emitted by vehicles causes ad breathing-related diseases.AnswertrueView full question & answer→
Question 41 MarkNo fuel is used in a boat that is propelled by oars.AnswertrueView full question & answer→
Question 51 MarkFuel is saved by vehicles running on solar energy.AnswerfalseView full question & answer→
Question 61 MarkWe should keep the engine of our vehicle running when the railway crossing is closed.AnswertrueView full question & answer→