Answer: THE ANSWER IS B. Kamkwamba built a windmill.
Explanation:
Answer:

Explanation:
9 x 9 x 9 x 9 is 9 multiplied by itself four times, so it's 9 to the 4th power as typed above.
Answer:
As much wood as a woodchuck could chuck, If a woodchuck could chuck wood.
Explanation: Heheh, I hope I helped!! <3