(Question)
Q: Sulfate is used as a cleaning agent because it is acidic and soluble in what substance? Choices: - air - salt - oxygen - water A:
(Answer)
water

(Question)
Q: Physical properties are characteristics that describe what as it exists? Choices: - imagination - antimatter - life - matter A:
(Answer)
matter

(Question)
Q: When a glacier no longer moves, what is it called? Choices: - a glacial lake - an iceberg - an ice cylinder - an ice sheet A:
(Answer)
an ice sheet