I messed it ?!!!!! What is it

can i use purified water for my aquarium? Hey! Can someone help me? Why did anti-imperialists oppose U.S. expansion? 1. A Zambeef delivery track travels 18 km north, 10 km east, and 16 km south. What is its final displacement from the origin? A boat travels 176 miles in 13hours (with a constant speed).How far can it travel in 22 hours(with the same speed)? Is best thing since bread an idiom