input: OPTIONS:
- radioactive isotope
- Geiger count
- life cycle
- half-life Now, answer this question: Q: What term decribes the amount of time required for half of the original material to decay in an isotope? A:
A:
output: half-life

Q: What is the name of the process by which plants use energy from sunlight to synthesize carbohydrates? A:

OPTIONS:
- osmosis
- cellular respiration
- pollination
- photosynthesis

Answer: photosynthesis

Problem: OPTIONS:
- reproduction
- photosynthesis
- electromagnetic respiration
- cellular respiration
Q: Q: What is the process in which cells break down glucose, release the stored energy, and use it to make atp A:
Answer: cellular respiration

Problem:OPTIONS:
- oxygen
- mercury
- neon
- phosphorus

Q: When what element - whose name means "light bringing" - was first isolated, scientists noted that it glowed in the dark and burned when exposed to air? A:
****
A: phosphorus

Q: What are the large segments of the earth's crust that ordinarily move very slowly? A:
OPTIONS:
- ocean plates
- lava plates
- distinct plates
- tectonic plates
tectonic plates

Q: Corals build hard exoskeletons that grow to become what? A:
OPTIONS:
- algae
- stability reefs
- fungi
- coral reefs

Answer:
coral reefs