SUSTAINABLE
using a resource so that the resource is not depleted or permanently damaged
BIODEGRADABLE
adjective. capable of being broken down especially into harmless products by the action of living things (such as microorganisms)
Source: Merriam-Webster
An encyclopedia is a book or digital collection of factual summaries (short articles) on many subjects listed in alphabetical order. Below are links to online encyclopedias for elementary schools.
