Q: Science is the process of knowing about the natural universe through observation and this? A:

OPTIONS:
- Test
- variation
- experimental
- experiment

Answer: experiment

Problem: OPTIONS:
- compound mass
- mass effect
- atomic energy
- molecular mass
Q: Q: What is the sum of the masses of the atoms in a molecule? A:
Answer: molecular mass

Problem:OPTIONS:
- tundra
- bedrock
- upper crust
- permafrost

Q: What is the layer of ground below the surface that is always frozen, even in the summer? A:
****
A: permafrost

Q: Platelets play a role in what cascade of reactions that converts plasma fibrinogen to fibrin? A:
OPTIONS:
- hemophilia
- sickle cell anemia
- bleeding
- blood clotting
blood clotting

Q: The human body has as many as two trillion lymphocytes, and lymphocytes make up about 25% of all of what? A:
OPTIONS:
- red blood cells
- pathogens
- glands
- leukocytes

Answer: leukocytes

input with options: Q: Which type of diseases do antibiotics treat? A:
OPTIONS:
- genetic disorders
- viral diseases
- nervous diseases
- bacterial diseases
output:
bacterial diseases