Which of the following is a material?
A. Wood
B. Rigid
C. Transparent
D. Dull

A. Wood

Explanation:

Material is a physical object (something made up of molecules, atoms etc.)

Other listed options are characteristic of that given material. For example, an iron bar is a material, but its shiny lustre is its characteristics.

a adaptation is when organism changes itself to fit the environment

ex. when its cold outside i wear a jacket

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