Question

set of concentric circles in a plan​

Answer 1

Their roots take up water and minerals from the ground and their leaves absorb a gas called carbon dioxide (CO2) from the air. They convert these ingredients into food by using energy from sunlight. This process is called photosynthesis, which means 'making out of light'. The foods are called glucose and starch.

Answer 2

Answer:

• So, we know that concentric circles in a plane means circles have the same common centre and we know we can draw infinite circles with the same centre in a plane, thus the set of concentric circles in a plane is an infinite set.