An operon is a group of genes under the control of a single promoter. match each type of operon with the descriptions below.

brain development. a child's brain undergoes an amazing period of development from birth to three—producing more than a million neural connections each second. the development of the brain is influenced by many factors, including a child's relationships, experiences and environment.

explanation:

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.