Q: Q: Liquid hcl can be used to do what to the ph of a swimming pool? Choices: - increase it - raise it - heighten it - lower it A:
A: lower it

Q: Q: What is the term for the cell fragments involved in blood clotting, which stick to tears in blood vessels and to each other? Choices: - molecules - droplets - cells - platelets A:
A: platelets

Q: Q: What do bats use to determine the location of objects? Choices: - infrared light - UV light - syncopation - echolocation A:
A: echolocation

Q: Q: It may seem as though burning destroys matter, but the same amount of what, still exists after a campfire as before? Choices: - termperature - concentrations - energy - mass A:
A: mass