Personal, school and community health - JSS3 Physical and health education Past Questions and Answers - page 2

Recycling has several benefits as a method of refuse disposal. It conserves natural resources by reusing materials like paper, plastic, glass, and metal. It reduces the amount of waste sent to landfills and incinerators, which helps decrease pollution and greenhouse gas emissions. Recycling also saves energy, as producing new products from recycled materials often requires less energy than using raw materials. Additionally, it can create jobs in the recycling and manufacturing industries

Groundwater becomes a source of water supply for communities through the use of wells. These wells are drilled into the ground to access water stored in aquifers, which are underground layers of rock or sediment that hold water. Once the groundwater is pumped to the surface, it undergoes treatment to ensure it is safe for drinking and other uses.

Rainwater harvesting involves collecting and storing rainwater from surfaces like rooftops, which is then stored in tanks or cisterns for later use. The process typically includes capturing rainwater through gutters and downspouts, filtering out debris, and storing the water in clean, sealed containers. The advantages of rainwater harvesting include reducing the demand on municipal water supplies, lowering water bills, and providing a sustainable source of water for irrigation, landscaping, and even drinking (if properly treated).