Q: Calcium hydroxide and calcium carbonate are effective in neutralizing the effects of what on lakes? Choices: - oil rain - ozone rain - dioxide rain - acid rain A:
acid rain

Q: Where are feces formed? Choices: - duodenum - liver - small intestine - large intestine A:
large intestine

Q: Q: A notochord has in common with what vertbrate structure? Choices: - trichord - rib cage - rip chord - spinal cord A:
A: spinal cord

Question: Q: The scale that is used to measure the loudness of sound measures their loudness in what? Choices: - waves - weight - centimeters - decibels A:
Answer: decibels

*Question*
Q: What theory proposes that microorganisms are the cause of many diseases? Choices: - malignant theory - evolution theory - mutated theory - germ theory A:
**Answer**
germ theory

Q: Q: The term "vapor" refers to the gas phase when it exists at a temperature below what? Choices: - contaminated temperature - freezing temperature - liquid temperature - boiling temperature A:
A: boiling temperature