Q: What organ do mammals have that is exceptionally large for their body size? Choices: - lungs - heart - liver - brain A:
brain

Q: In the presence of oxygen, hydrogen can interact to make what? Choices: - carbon - helium - acid - water A:
water

Q: If only blue light strikes green leaves what happens to it? Choices: - it causes heating - it is reflected - it causes cooling - it is absorbed A:
it is absorbed

Q: What atoms make up a water molecule? Choices: - alumhg and oxygen - One Hydrogen - Sodium and Oxygen - hydrogen and oxygen A:
hydrogen and oxygen