Q: Acids are molecular compounds that dissolve in water to produce hydronium ions and what else? Choices: - a neutron - a proton - an alkali - an anion A:
an anion

Q: What is the theoretical event that began the universe often called? Choices: - Coreolis effect - dark matter - string theory - big bang A:
big bang

Q: Q: What protects the scalp from ultraviolet light exposure and loss of body heat? Choices: - ground hair - temporal hair - receding hair - head hair A:
A: head hair

Question: Q: Which waterfall series is the largest on the planet? Choices: - yosemite falls - angel falls - niagara falls - iguassu falls A:
Answer: iguassu falls

*Question*
Q: What type of animal in the sea spend most of their lives as medusae? Choices: - fish - sharks - whales - jellyfish A:
**Answer**
jellyfish

(Q).
Q: Unlike ammonia, oxygen cannot be liquefied at room temperature because its what is below room temperature? Choices: - relaxed temperature - leading temperature - particular temperature - critical temperature A:
(A).
critical temperature