Q: Q: What are the blood vessels that carry blood toward the heart and tend to have thinner walls? Choices: - capillaries - glands - clots - veins A:
A: veins

Q: Q: As lava cools, tiny iron-rich crystals line up with earth's what? Choices: - gravitational field - oceans - molecular field - magnetic field A:
A: magnetic field

Q: Q: When boron10 absorbs a neutron, what does it emit? Choices: - calcium - light - proteins - particle A:
A: particle

Q: Q: What consists of two or more elements and forms as a result of a chemical reaction? Choices: - molecule - particle - protein - compound A:
A: compound