Chhattisgarh State Board Class 6 Science Chapter 15 Waste and its Management Exercise Multiple Choice, Fill in the Blanks, Questions and Answers here.
Chhattisgarh State Class 6 Science Chapter 15 Solution
1.) What can be the reasons for the water of a pond being unfit for consumption?
Throwing waste materials of household , markets , hospitals in the nearest ponds can be the reasons for the water of pond being unfit for consumption.
2.) What will be the condition of dumping area if the volume of garbage keeps on increasing?
If the volume of garbage keeps on increasing then there will be an overflow at dumping area . Due to the overflow garbages could bespread around the area which causes nature pollution and also many diseases .
3.) List the harmful effects of the use of plastics in articles of daily use.
The harmful effects of the use of plastics in articles of daily life are , a) many animals like cow swallow plastics along with the garbage and these can get stuck in their intestines which may cause their death , b) when plastics collect in soil , they stop the flow of water , c) heating and burning of plastics releases harmful gases which cause air polution and various health problems , etc .
4.) Explain the meaning of recycling
Recycling has a major role in the waste management . This process uses scientific method on waste substances like metals , plastics , rubber and glass to make them reusable .
5.) Why earthworms are known as farmers’ friends?
Earthworms are known as farmers’ friends because earthworms decompose all the decaying waste metarial present in the soil and excrete them as organic manure which is useful for farmers .