input: OPTIONS:
- happiness
- weight
- mass
- its temperature Now, answer this question: Q: When light is absorbed by a material, what may increase? A:
A:
output: its temperature

Q: What is the term for polyatomic ligands with two or more donor atoms? A:

OPTIONS:
- proteins
- polyamines
- angiosperms
- chelates

Answer: chelates

Problem: OPTIONS:
- fiberglass
- cellophane
- foil
- mylar
Q: Q: What material used for helium-filled balloons is dense, strong and opaque, with a high molecular mass that forms films that have many fewer pores than rubber? A:
Answer: mylar

Problem:OPTIONS:
- addition and multiplication
- osmosis and heredity
- time and space
- heat and work

Q: According to count rumford, which two are equivalent ways of transferring energy? A:
****
A: heat and work

Q: What two gases are the main components of air? A:
OPTIONS:
- oxygen and helium
- carbon and oxygen
- hydrogen and helium
- nitrogen and oxygen
nitrogen and oxygen

Q: What type of acid is often used as a preservative for acidic foods such as fruit juices? A:
OPTIONS:
- hydrochloric acid
- sulfuric acid
- citric acid
- benzoic acid

Answer:
benzoic acid