The myelin sheath that covers many cns axons is formed by oligodendrocytes.
Oligodendrocytes are type of neuroglia (non-neural cells found in central nervous system) with protective, trophic and supportive role. Their function is to insulate axons (with myelin sheath), in the central nervous system (CNS) which is, equivalent to the function performed by Schwann cells in the peripheral nervous system (PNS).
<u>Answer</u>: Sustainable development
<u>Explanation</u> :
The concept of sustainable development is based on the ideas of sustainable forest management and is derived from the Brundtland Report (1987).
It is basically an organizing principle which states that the human developmental goals should be met by maintaining the stability of the natural systems so that the natural sources can be sustained for future use as well.
So,<em> sustainable development basically means that the present needs should be met without comprising the needs of future generations.</em>
Well there are a few different features such as the silver-grey metallic appearance, capable malleability, effective conductivity and lustrous shine !
1. This process is called translation
2. This process is called transcription
I hope this helps :)