Q: Q: Friction causes the molecules on rubbing surfaces to move faster, which produces what? A:

OPTIONS:
- life
- precipitation
- cold
- heat

A: heat

input: OPTIONS:
- nuclear
- frictional
- tension
- gravity Now, answer this question: Q: What force increases a slide downhill and decreases a slide uphill? A:
A:
output: gravity

Q: Biomass, solar, wind, water, and geothermal power are examples of what kinds of energy resources? A:

OPTIONS:
- mechanical
- electrical
- fossil fuel
- renewable

Answer: renewable

Problem: OPTIONS:
- terrible twos
- fetal stage
- pre-adolescence
- infancy
Q: Q: When does a baby double in length and triple in weight? A:
Answer: infancy

Problem:OPTIONS:
- binary planet
- minor planet
- gas planet
- dwarf planet

Q: What kind of planet do we consider ceres to be? A:
****
A: dwarf planet

Problem:OPTIONS:
- residual resources
- general resources
- orbital resources
- renewable resources

Q: What are resources that don't run out? A:
****
A:
renewable resources