The correct sentence is:
Each person’s brain develops and forms new connections, but it is not aware of these changes.
The antecedent of the pronoun "it" is "each person’s brain".
Then, in a brief paragraph, explain the way that these first two sections are organized. Be sure to clearly summarize the points of each section, and explain if there are any subsections. Be sure that you use transitions clearly so that the reader will understand the organization of the contents of these sections.
Cut unnecessary things
e.g 1.quick unnecessary conversations.
Do only what really matters in time and try to be fast as you can to save your time for other important things
Radiation exposure can lead to skin cancer and other various types of cancers
