Answer:
A. Reduce, reuse, recycle, compost
Explanation:
As we are dealing with huge amounts of solid waste, which negatively affects our environment, we've begun talking about methods that could help us control these amounts. These methods include the so-called 3RC (reduce, reuse, recycle, compost).
We should reduce the amounts of waste. For example, we could use reusable water bottles instead of constantly buying disposable ones.
Upcycling and freecycling are ways to reuse waste instead of throwing it away. Upcycling is the reuse of objects to create a product of higher quality or something different, and freecycling refers to giving away something we no longer need instead of throwing it away.
Recycling is the process of converting waste materials into new materials and objects.
Composting is a process in which macro- and micro-organisms break down organic materials to form a rich, soil-like substance.
