Using Solar Power to Clean Drinking Water (Editing)

10. What change is needed in sentence 6?

• F. Change explained to has explained

• G. Change then to than

• H. Change fell to falls

• J. Delete the comma after ground

11. What change should be made in sentence 25?

• A. Delete the comma after Furthermore

• B. Change than to then

• C. Change they are to it is

• D. Change widely to wildly

12. What change should be made in sentence 27?

• F. Change diversity to divercity

• G. Delete the apostrophe after environments

• H. Change presents to presenting

• J Change have to has

13. What change is needed in sentence 29?

• A. Change can to could

• B. Change the comma after drinkable to a semicolon

• C. Change quickly to quick

• D. Change process to prosess

14. What change needs to be made in sentence 33?

• F. Delete the comma after Soon

• G. Change will be to will have been

• H. Change purified to purifying

• J. Change assessible to accessible