*Question*
Q: What word do get from the arabic al-qili, meaning "ashes of the saltwort plant from salt marshes"? Choices: - water - metals - crystals - alkali A:
**Answer**
alkali

*Question*
Q: When electrons return to a lower energy level, they emit the excess energy in the form of what? Choices: - weight - electricity - energy - light A:
**Answer**
light

*Question*
Q: Skin color is controlled by genes but also influenced by exposure to what? Choices: - food - precipitation - makeup - sunlight A:
**Answer**
sunlight

*Question*
Q: What is any nonmetallic, inorganic solid that is strong enough for use in structural applications called? Choices: - tissue - metallic - glass - ceramic A:
**Answer**
ceramic