Question: Q: What can echinoderms sense with their simple eyes? Choices: - colors - shapes - electricity - light A:
Answer: light

Question: Q: What creates a new seafloor at the mid-ocean ridge? Choices: - earthquake - hurricane - glaciers - magma A:
Answer: magma

Question: Q: What is the most important element to life? Choices: - oxygen - hydrogen - nitrogen - carbon A:
Answer:
carbon