Subject :NSO Class : Class 8
Subject :NSO Class : Class 3
Post Your Answer
Subject :NSO Class : Class 2
Post Your Answer
Subject :NSO Class : Class 6
Ans 1:
Class : Class 3
Air pollution on the road can be reduced by encouraging the use of CNG in vehicles. When used in vehicles as fuel, CNG produces fewer undesirable gases than petrol, diesel or propane. If we increase the number of vehicles on the road, then they will emit more of carbon emissions and smoke. This would cause more air pollution.Deforestation means cutting down trees and forests. Trees absorb harmful carbon dioxide from the air. If trees are cut down, they would not be able to absorb carbon dioxide, so carbon dioxide levels in air would go up. This would cause more air pollution. Hence, Option C is the correct answer.
Post Your Answer
Subject :NSO Class : Class 6
Post Your Answer
Subject :NSO Class : Class 6
Post Your Answer
Subject :NSO Class : Class 8
Post Your Answer
Subject :NSO Class : Class 6
Ans 1:
Class : Class 3
Let’s see what the process given in the options mean:A. Vermicomposting ----- Vermicomposting is a composting process in which various species of worms, usually red wigglers, white worms, and other earthworms, etc., are to create a mixture of decomposing vegetable or food waste.B. Composting ----- Composting is the process of decomposing organic solid wastes. It can be used to recycle organic material into a humus-like material, known as compost, which is a good fertilizer for plants.C. Decaying ----- When organic material decomposes through the action of bacteria and fungi, it is called Delaying.D. Recycling ----- Recycling is the process of collecting and processing materials, that would otherwise be thrown away as trash, and turning them into new products.That means the method of converting decaying organic waste into manure using red worms is Vermicomposting.Hence, the right answer is Option A.
Post Your Answer
Subject :NSO Class : Class 1
Post Your Answer
Subject :NSO Class : Class 1
