Question

Define adsorption. Why students can
read black board written by chalks?​

Answer 1

The process by which one thing absorbs or is absorbed by another is known as absorption

Answer 2

Answer:

the digested food absorbed by the body flows through blood vessels into stream for the energy, growth of body are called absorprion.

the student can read on black board written by chalks because white is opposite colour of black. If any dots of white colour printed on black things , then it highlight's.

please add me an brilliant student