input with options: Q: Radiation can be absorbed or shielded by materials, particularly what material used to make protective aprons worn by x-ray administrators? A:
OPTIONS:
- cotton
- steel
- carbon
- lead
output: lead

Q: Q: Lactic acid fermentation is common in muscle cells that have run out of what? A:

OPTIONS:
- carbon
- helium
- nitrogen
- oxygen

A: oxygen

input: OPTIONS:
- embryo sac
- neural sac
- algae sac
- yolk sac Now, answer this question: Q: On the ventral side of the embryonic disc, opposite the amnion, cells in the lower layer of the embryonic disk (the hypoblast) extend into the blastocyst cavity and form this? A:
A:
output: yolk sac

Q: Gases can be classifed as real or what? A:

OPTIONS:
- noble
- shape
- dense
- ideal

Answer: ideal

Problem: OPTIONS:
- multiply protons and neutrons
- subtract protons from electrons
- divide protons and neutrons
- add up protons and neutrons
Q: Q: How do you determine the atomic weight of an element? A:
Answer: add up protons and neutrons

Q: What kind of weathering is abrasion? A:

OPTIONS:
- molecular
- electromagnetic
- natural
- mechanical

Answer:
mechanical