Answer the following question given this paragraph: Estimation, as used in measurement, is the process of referencing a physical quantity in terms of a calibration or reference point. All measurement devices have reference marks of some kind. Q: A reference point is used in measurement to make what? A:

OPTIONS:
- deviation
- focal point
- regression
- estimation

Answer: estimation

Problem: OPTIONS:
- acidophobes
- acidic
- acid heads
- acidophiles
Q: Answer the following question given this paragraph: Acidophiles are organisms that "love" acids. They live in very acidic environments, such as acid mine drainage. They are also found near vents of volcanoes. The most acidophilic archaeans can thrive at negative pH values. No other organisms can survive in such acidic conditions. Q: Organisms that "love" acids are known as what? A:
Answer: acidophiles

Problem:OPTIONS:
- a battery
- a wedge
- a lever
- a rope

Answer the following question given this paragraph: Another simple machine that uses a wheel is the pulley. A pulley is a simple machine that consists of a rope and grooved wheel. The rope fits into the groove in the wheel, and pulling on the rope turns the wheel. Figure below shows two common uses of pulleys. Q: A pulley is a simple machine that consists of a grooved wheel and? A:
****
A: a rope

Answer the following question given this paragraph: Alpha and beta decay occur when a nucleus has too many protons or an unstable ratio of protons to neutrons. When the nucleus emits a particle, it gains or loses one or two protons, so the atom becomes a different element. Gamma decay, in contrast, occurs when a nucleus is in an excited state and has too much energy to be stable. This often happens after alpha or beta decay has occurred. Because only energy is emitted during gamma decay, the number of protons remains the same. Therefore, an atom does not become a different element during this type of decay. Q: Alpha and beta decay occur when a nucleus has too many protons or an unstable ratio of what? A:
OPTIONS:
- electrons to neutrons
- atoms to neutrons
- nucleus to neutrons
- protons to neutrons
protons to neutrons

Answer the following question given this paragraph: Figure 21.13 Extinction intensity as reflected in the fossil record has fluctuated throughout Earth's history. Sudden and dramatic losses of biodiversity, called mass extinctions, have occurred five times. Q: What are sudden and dramatic losses of biodiversity called? A:
OPTIONS:
- explosive extinction
- life extinction
- normal extinction
- mass extinction

Answer: mass extinction

input with options: Answer the following question given this paragraph: Electricity can be used to produce a magnetic field. Magnetism produced by electricity is called electromagnetism. Q: What is magnetism produced by electricity called? A:
OPTIONS:
- electrical attraction
- momentum
- excitation
- electromagnetism
output:
electromagnetism