Question

). Bio - degradable substance
. Non – luminous body​

Answer 1

Answer:

Please elaborate on your question for it to make sense and for us to provide an adequate answer.

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Answer 2

Answer:

Degradable substance:

*Biodegradable waste includes any organic matter in waste which can be broken down into carbon dioxide, water, methane or simple organic molecules by micro-organisms and other living things by composting, aerobic digestion, anaerobic digestion or similar processes.

*Degradable material contains food waste like vegetable and fruit peels, dead plants and animals, egg shells, chicken, garden waste paper materials, etc.

Non – luminous body:

*The non-luminous objects are visible because of luminous objects

*The moon and planets are the two examples

Explanation: