Starting around 7000 B. C. and for the next four thousand years, much of the Northern Hemisphere temperatures warmer than at present.

a. with experience of
b. experienced
c. experiencing
d. experience

the author motivation is to show the power of animal-human relationships.

the answer is sail boat won the race , and it was going 8 feet per   second

c is the answer because first she would blush to make the reader wonder why which they find out in the next line.

pretty sure the answers are 1 b 2 c idk hope it is right