I want to start recycling more, so I'm interested to learn more about the process(s)/.
Recycling is important. Many new materials and objects result from the process of recycling. 
What are some things that I should start recycling?
Recycling includes items like metal, plastic, textiles, electronics, paper, cardboard, and glass.
Interesting, I didn't know all of those things were able to be recycled! When did humans learn about the process of recycling things?
It goe back to old time when no one wanted to waste anything. Recycling is a key component in waste reduction. The other two is "Reduce" and "Reuse"
I try my best to reuse things around the house! I really can't stand to see people throwing things away when they can be used again.
Recycling
Recycling is the process of converting waste materials into new materials and objects. It is an alternative to "conventional" waste disposal that can save material and help lower greenhouse gas emissions. Recycling can prevent the waste of potentially useful materials and reduce the consumption of fresh raw materials, thereby reducing: energy usage, air pollution (from incineration), and water pollution (from landfilling).
Recycling is a key component of modern waste reduction and is the third component of the "Reduce, Reuse, and Recycle
" waste hierarchy. Thus, recycling aims at environmental sustainability by substituting raw material inputs into and redirecting waste outputs out of the economic system.
There are some ISO standards related to recycling such as ISO 15270:2008 for plastics waste and ISO 14001:2015 for environmental management control of recycling practice.
"Recyclable materials" include many kinds of glass, paper, cardboard, metal, plastic, tires, textiles, batteries, and electronics. The composting or other reuse of biodegradable waste—such as food or garden waste—is also