Question 2: Placing a brick (or glass jar filled with water) in your toilet tank does what? A- Nothing B - Helps keep it cleaner C-Saves you money D- Keeps the toilet balanced ​

Aregion is an area of land that has common features. these features can be natural, such as climate or landscape. they can also be artificial, such as language or religion. the xinjiang uyghur autonomous region, above, is an area of china inhabited by uyghurs, a muslim group with ethnic ties to turkish people.

Why you put last one a? i think is b.