Problem: OPTIONS:
- eight
- one
- four
- two
Q: Q: How many pairs of legs does a millipede have per body segment? A:
Answer: two

Problem:OPTIONS:
- system
- ecosystem
- biosphere
- population

Q: What do you call a group of organisms of the same species that live in the same area? A:
****
A: population

Q: What occurs when light bends as it passes from one type of matter to another? A:
OPTIONS:
- vibration
- reflection
- resonance
- refraction
refraction

Q: The thick skin, found only on the palms of the hands and the soles of the feet, has an extra what? A:
OPTIONS:
- surface
- Skin
- outer
- layer

Answer: layer

Question: Q: What do people build to protect areas from floods? A:
OPTIONS:
- reinforced walls
- drains
- sewers
- dams
Answer: dams

input: OPTIONS:
- sediments
- Changes
- weathering
- metamorphism Now, answer this question: Q: Which process changes rocks by heat and pressure? A:
A:
output:
metamorphism