Q: What is the process of processing used material into new ones called? A:
OPTIONS:
- remake
- renew
- reuse
- recycling

Answer: recycling

Question: Q: Radioactive isotopes are characterized by an unstable what? A:
OPTIONS:
- shell
- proton
- electrons
- nuclei
Answer: nuclei

input with options: Q: Molds and casts usually form in which type of rock? A:
OPTIONS:
- igneous
- metamorphic
- crystalline
- sedimentary
output: sedimentary

Q: Q: Blood calcium levels are tightly regulated by the what system? A:

OPTIONS:
- digestive
- cardiovascular
- nervous
- endocrine

A: endocrine

input: OPTIONS:
- pores
- ions
- lipids
- lumen Now, answer this question: Q: What does bowman's capsule form by surrounding the glomerulus? A:
A:
output: lumen

Question: Q: What is the process by which a liquid changes to a solid? A:
OPTIONS:
- melting
- vaporizing
- boiling
- freezing
Answer:
freezing