Problem:OPTIONS:
- joints
- ligaments
- veins
- tendons

Q: By what are skeletal muscles attached to bones? A:
****
A: tendons

Q: What are clouds on earth made of? A:
OPTIONS:
- rain
- ozone
- carbon dioxide gas
- water vapor
water vapor

Q: Homes and transportation use what percent of all energy in the u.s.? A:
OPTIONS:
- twenty five
- fifteen
- forty
- half (fifty)

Answer: half (fifty)

Question: Q: What is the air that remains after a forced exhalation called? A:
OPTIONS:
- kinetic volume
- abundant volume
- remaining volume
- residual volume
Answer: residual volume

input with options: Q: What kind of waves travel through liquids and solids as well as air? A:
OPTIONS:
- light waves
- mind waves
- radio waves
- sound waves
output: sound waves

Problem: OPTIONS:
- climatologists
- geologists
- botanists
- meteorologists
Q: Q: What are scientists called who study the weather and give forecasts? A:
Answer:
meteorologists