Problem: OPTIONS:
- spreading friction
- static friction
- rolling friction
- sliding friction
Q: Q: What type of friction is friction that acts on objects when they are sliding over a surface? A:
Answer: sliding friction

Problem:OPTIONS:
- latitude
- longitude
- plate
- equator

Q: What is the name for the line dividing the earth's hemispheres? A:
****
A: equator

Q: What happens to the length of the days in the fall? A:
OPTIONS:
- they stay the same
- they change randomly
- they get longer
- they get shorter
they get shorter

Q: What organ participates in all digestive activities except ingestion and defecation? A:
OPTIONS:
- small intestine
- tongue
- large intestine
- stomach

Answer: stomach

Question: Q: What do a river and all its tributaries make up? A:
OPTIONS:
- abundance system
- water system
- food system
- river system
Answer: river system

input: OPTIONS:
- fatty microorganisms
- lentiviruses microorganisms
- sponges microorganisms
- chemosynthetic microorganisms Now, answer this question: Q: What do tube worms rely on for food? A:
A:
output:
chemosynthetic microorganisms