Q: Q: Surprisingly, where would you find the earth's tallest mountains and deepest canyons? A:

OPTIONS:
- Tibet
- rain forests
- taiga
- ocean floor

A: ocean floor

input: OPTIONS:
- heating
- dissolution
- liquid reactions
- chemical reactions Now, answer this question: Q: Pure substances have a constant composition and can only be changed through what? A:
A:
output: chemical reactions

Q: Skeletal, cardiac, and smooth are the three types of what cells and possess morphologies correlated with their functions? A:

OPTIONS:
- cartilage tissue
- organ
- bone
- muscle

Answer: muscle

Problem: OPTIONS:
- eclipse
- pleura
- pentila
- penumbra
Q: Q: What is the part of the shadow that is partially lit called? A:
Answer: penumbra

Problem:OPTIONS:
- erosion
- gas
- elastic
- equilibrium

Q: In a medium, the closer the distribution of the material gets to what state, the slower the rate of diffusion becomes? A:
****
A: equilibrium

Problem:OPTIONS:
- clothing
- food
- oil
- clean drinking water

Q: At least 20 percent of the world's people do not have a ready supply of what? A:
****
A:
clean drinking water