Problem: OPTIONS:
- protons
- electrons
- isotopes
- neutrons
Q: Q: The first reported nuclear fission occurred in 1939 when three german scientists bombarded uranium-235 atoms with slow-moving what? A:
Answer: neutrons

Problem:OPTIONS:
- disease
- mutations
- intelligence
- survival

Q: The fetus becoming relatively large and mature before birth increases the chances of what? A:
****
A: survival

Q: In contrast to metals, electrical insulators are materials that conduct electricity poorly because their valence bands are what? A:
OPTIONS:
- empty
- large
- half-full
- full
full

Q: What is the study of chemical processes that occur in living things? A:
OPTIONS:
- phrenology
- physiology
- cardiology
- biochemistry

Answer: biochemistry

Question: Q: A colloid is a homogeneous mixture with medium-sized what? A:
OPTIONS:
- atoms
- solutions
- molecules
- particles
Answer: particles

input: OPTIONS:
- nitrogen
- helium
- carbon
- hydrogen Now, answer this question: Q: Water is an oxide of what element? A:
A:
output:
hydrogen