Q: What triangular feature is formed when a river empties into a large body of still water? A:
OPTIONS:
- flow
- confluence
- region
- delta

Answer: delta

Question: Q: What is the name for a matter that has a fixed volume and a fixed shape? A:
OPTIONS:
- gas
- stable
- liquid
- solid
Answer: solid

input with options: Q: Lenses make use of what to create images? A:
OPTIONS:
- envelopment of light
- stimulation of light
- resonance of light
- refraction of light
output: refraction of light

Q: Q: What do a river and all its tributaries make up? A:

OPTIONS:
- abundance system
- water system
- food system
- river system

A: river system

input: OPTIONS:
- shape
- pressure
- color
- energy Now, answer this question: Q: Physical or chemical changes are generally accompanied by a transfer of what? A:
A:
output: energy

Question: Q: During what in the small intestine do rings of smooth muscle repeatedly contract and then relax? A:
OPTIONS:
- mitosis
- contraction
- compression
- segmentation
Answer:
segmentation