Problem: OPTIONS:
- volume
- direction
- density
- velocity
Q: Q: The amount of kinetic energy in a moving object depends directly on its mass and what else? A:
Answer: velocity

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

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

Q: What is the leading cause of death in the united states? A:
OPTIONS:
- suicide
- automobile accidents
- lung cancer
- heart disease
heart disease

Q: What two things are a phospholipid molecules composed of? A:
OPTIONS:
- hydrophillic head , and adhesion tails
- hydrophillic head , and substrate tails
- hemophillic head, and substrate tails
- hydrophillic head , and hydrophobic tails

Answer: hydrophillic head , and hydrophobic tails

Question: Q: The force on a charged particle in a magnetic field is always perpendicular to both its velocity vector and the? A:
OPTIONS:
- position vector
- track vector
- gravity vector
- field vector
Answer: field vector

input: OPTIONS:
- semimetal zone
- Dark Zone
- observable zone
- aphotic zone Now, answer this question: Q: What do you call the zone in a body of water where there is too little sunlight for photosynthesis? A:
A:
output:
aphotic zone