6. explain the benefits of recycling, and describe methods of waste disposal.

Explanation:

Recycling -

The process of recycling , in which the waste material is converted to a useful material . The recycling process helps in lowering the greenhouse gas emissions , lowers the waste produced , lowers the consumption of fresh raw materials , reduces pollution and  act as an eco - friendly step .

Recyclable objects area glass , paper , metal , plastic , textiles , cardboard , electronics ,etc.

Method of Waste Disposal -

1.  Preventing or reducing waste generation

2.  Sanitary Landfill - This involves the dumping of wastes into a landfill.  

3.  Incineration - in this method , the municipal solid wastes are burned at very high temperature to convert into residue and gaseous products .  

4. Composting - The process of decomposition of the organic wastes with the help of microbes by allowing the waste to stay in a pit for a long time .

answer; in the united states the plains include the great plains of the west and the tail grass prairie to the south of the great lakes extending east to the appalachian plateau