input with options: Answer the following question given this paragraph: Figure 17.33 Resonance has been used in musical instruments since prehistoric times. This marimba uses gourds as resonance chambers to amplify its sound. (credit: APC Events, Flickr). Q: Resonance has been used in what kind of human-made recreational objects since prehistoric times? A:
OPTIONS:
- toys
- paintbrushes
- arrows
- musical instruments
output: musical instruments

Q: Answer the following question given this paragraph: Check Your Learning Ammonia can be liquefied by compression at room temperature; oxygen cannot be liquefied under these conditions. Why do the two gases exhibit different behavior? Answer: The critical temperature of ammonia is 405.5 K, which is higher than room temperature. The critical temperature of oxygen is below room temperature; thus oxygen cannot be liquefied at room temperature. Q: Unlike ammonia, oxygen cannot be liquefied at room temperature because its what is below room temperature? A:

OPTIONS:
- relaxed temperature
- leading temperature
- particular temperature
- critical temperature

A: critical temperature

input: OPTIONS:
- senses
- mechanisms
- tremors
- reflexes Now, answer this question: Answer the following question given this paragraph: The somatic nervous system also controls some unconscious movements, called reflexes. A reflex is a very rapid motor response that is not directed by the brain. In a reflex, nerve impulses travel to and from the spinal cord in a reflex arc , like the one in Figure below . In this example, the person jerks his hand away from the flame without any conscious thought. It happens unconsciously because the nerve impulses bypass the brain. Q: What is the term for the unconscious movements controlled by the somatic nervous system? A:
A:
output: reflexes

Answer the following question given this paragraph: Physical chemistry is the study of macroscopic properties, atomic properties, and phenomena in chemical systems. A physical chemist may study such things as the rates of chemical reactions, the energy transfers that occur in reactions, or the physical structure of materials at the molecular level. Q: What is the study of macroscopic properties, atomic properties, and phenomena in chemical systems? A:

OPTIONS:
- differential chemistry
- thermal chemistry
- molecular chemistry
- physical chemistry

Answer: physical chemistry

Problem: OPTIONS:
- ionic elements
- decaying elements
- radioactive compounds
- radioactive elements
Q: Answer the following question given this paragraph: Earth's internal heat does not depend on the Sun for energy. This heat comes from remnant heat when the planet formed. It also comes from the decay of radioactive elements. Radioactivity is an important source of energy. Q: Decay of what provides some of earth's internal heat? A:
Answer: radioactive elements

Answer the following question given this paragraph: Experiments are sometimes hard or even impossible to do. For example, a scientist who is studying an extinct animal cannot experiment with the animal because it no longer exists. The scientist must rely instead on evidence in the natural world, such as fossils that the extinct animal left behind. Q: What can be hard or even impossible to perform in a scientific sense? A:

OPTIONS:
- hypothesises
- idea
- theorys
- experiments

Answer:
experiments