Is the difference between noun and adjective

Peter is creative and excels with visual presentation he enjoys working in small groups and in an active environment which jobs would match his personality

Agood persuasive essay topic cannot be a. a fact b. debatable c. something somebody else has already written about

Read this excerpt from leah missbach day's foreword to wheels of change.bicycles have long played a role in my life. as a young woman, i rode one year-round before i had a car. but it was later in adulthood that the bicycle became more than a source of transportation for me. the bicycle actually began to truly shape the way i saw the world.what is the author's purpose for including this in the foreword?