Q: Q: What common air pollutant is characterized by its sharp odor and often triggers asthma attacks? Choices: - plant dioxide - pigment dioxide - Carbon Dioxide - nitrogen dioxide A:
A: nitrogen dioxide

Q: Q: What is the measure of sound intensity levels? Choices: - octaves - moles - centimeters - decibels A:
A: decibels

Q: Q: What is a substance that can not be broken down any further into other substances? Choices: - pure molecule - pure material - unbreakable substance - pure substance A:
A: pure substance

Q: Q: What is lowered when salts go into ion form? Choices: - charge - voltage - power - resistance A:
A: resistance