Answer:
A sustainable forest is a forest that is carefully managed so that as trees are felled they are replaced with seedlings that eventually grow into mature trees. This is a carefully and skilfully managed system.
Explanation:
<span>Survei dan Dokumentasi</span>
<span>Field research or fieldwork is the collection of information does not take a place laboratory. library or workplace setting. The approaches and methods used in field research vary across disciplines. For example, biologists who conduct field research may simply observe animals interacting with their environments, whereas social scientists conducting field research may interview or observe people in their natural environments to learn their languages, folklore, and social structures.</span>
I would have to say maya they <span>spread across what is now Mexico and South America, 200 - 900CE, and developed glyphic writing, as well as using advanced mathematics and astronomy to formulate two distinct calendars</span>
