Question: Q: What is made by trees and other plants during photosynthesis?    Choices:  - methane  - carbon dioxide  - nitrogen  - oxygen  A:
Answer: oxygen

Question: Q: Lava that enters the water is called what?    Choices:  - lava flow  - magma runoff  - saltwater lava  - pillow lava  A:
Answer: pillow lava

Question: Q: What is the lowest level of organism that can perform all activities required for life?    Choices:  - system  - nucleus  - atom  - cell  A:
Answer: