Give one word for the following: When trees are planted in an area that did not have trees before.
Afforestation:
Give one word for the top most layer of tall trees that forms an umbrella.
Before the start of the Current Era (BCE, before 0 AD), the Greeks did not have this fibre. When they sent messengers to India , they reported in awe about “wool that grew on trees”. Which fibre were they talking about?