Q: What do structures of the human eye collect and focus? Choices: - sugars - air - electricity - light A:
light

Q: Scanning acoustic microscopes use what kind of waves to scan a specimen? Choices: - radio waves - heat waves - gamma waves - sound waves A:
sound waves

Q: Which process helps provide cleaner water for agriculture? Choices: - purification - sterilization - osmosis - process of desalinization A:
process of desalinization