1
using less energy to perform the same task
3
something that doesn't run out
4
denoting or relating to products that are intended to be discarded after being used once or a few times.
5
to avoid wasteful or destructive use of something
7
things or places made or caused by human beings.
8
not made or caused by humankind
9
having or seeming to have no end or limit.
10
To make things that have been used into something else
11
To make or use less of something
12
to make or draw plans for something, for example clothes or buildings:
13
to select freely and after consideration
17
To use something again or in new way
18
To change from a solid to a liquid state by heating or being heated
20
old or discarded articles that are considered useless or of little value
