input: OPTIONS:
- digestive system
- nervous system
- tissues system
- skeletal system Now, answer this question: Answer the following question given this paragraph: Possible problems of the skeletal system include osteoporosis, osteoarthritis, fractures, and sprains. Q: Osteoporosis, osteoarthritis, fractures, and sprains are problems affecting what system? A:
A:
output: skeletal system

Answer the following question given this paragraph: Pollution that enters water at just one point is called point source pollution . For example, chemicals from a factory might empty into a stream through a pipe or set of pipes (see Figure below ). Pollution that enters in many places is called non-point source pollution . This means that the pollution is from multiple sources. With non-point source pollution, runoff may carry the pollution into a body of water. Which type of pollution do you think is harder to control?. Q: What is pollution that enters water at just one point called? A:

OPTIONS:
- entry point pollution
- point supply pollution
- point supply pollution
- point source pollution

Answer: point source pollution

Problem: OPTIONS:
- the colon
- the urinary liver
- the small intestine
- the urinary bladder
Q: Answer the following question given this paragraph: From the kidneys, urine enters the ureters. These are two muscular tubes that carry urine to the urinary bladder. Contractions of the muscles of the ureters move the urine along by peristalsis. The urinary bladder is a sac-like organ that stores urine. When the bladder is about half full, a sphincter relaxes to let urine flow out of the bladder and into the urethra. The urethra is a muscular tube that carries urine out of the body through another sphincter. The process of urine leaving the body is called urination. The second sphincter and the process of urination are normally under conscious control. Q: What is a sac-like organ that stores urine? A:
Answer: the urinary bladder

Problem:OPTIONS:
- colors
- smells
- food
- diseases

Answer the following question given this paragraph: Bacteria are responsible for many types of diseases in humans. Q: Bacteria are responsible for many types of what in humans? A:
****
A: diseases

Answer the following question given this paragraph: Ketones are carbonyls in which the carbon atom makes single bonds with two other carbon atoms. Ketones are less reactive than aldehydes and are a common component in nail polish removers and paint strippers. Q: What word describes a carbonyl where the carbon atom makes single bonds with two others? A:
OPTIONS:
- acetone
- ions
- photons
- ketones
ketones

Answer the following question given this paragraph: Most metal objects are made of metal alloys rather than pure metals. Q: What are most metal objects made of? A:
OPTIONS:
- tin
- aluminum
- bronze
- metal alloys

Answer:
metal alloys