Answer:
its A
Explanation:
the paragraph did but also didn't talk about its velueness or any of that it talked mainly on how it was made how it is a slow process and takes time
Answer:
as tall as
Explanation:
any how it is the right answer
Answer:
A. able to be maintained
sus·tain·a·ble
/səˈstānəb(ə)l/
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adjective
adjective: sustainable
1. able to be maintained at a certain rate or level.
conserving an ecological balance by avoiding depletion of natural resources.
2. able to be upheld or defended.
Explanation:
Hope this helps.
