Problem:OPTIONS:
- transistors
- generators
- tubes
- transformers

Answer the following question given this paragraph: Electric substations have several functions. Many substations distribute electricity from a few high-voltage lines to several lower-voltage lines. They have electric transformers, which use electromagnetic induction to change the voltage of the current. Some transformers increase the voltage; others decrease the voltage. In the Figure below , you can see how both types of transformers are used in an electrical grid. Q: Electric substations have what devices, which use electromagnetic induction to increase or decrease the voltage of the current? A:
****
A: transformers

Answer the following question given this paragraph: Acid rain is rain that has a pH less than 5 ( Figure below ). Acidity is measured on the pH scale . Lower numbers are more acidic, and higher numbers are less acidic (also called more alkaline ). An acid has a pH of less than 7. The pH of normal rain is 5.6. It's slightly acidic because carbon dioxide in the air dissolves in rain. This forms carbonic acid, a weak acid. Q: What is the term for rain consisting of water with a ph below 5? A:
OPTIONS:
- carbon rain
- produce rain
- Hot Rain
- acid rain
acid rain

Answer the following question given this paragraph: Air quality is a measure of the pollutants in the air. More pollutants mean poorer air quality. Poor air quality started to become a serious problem after the Industrial Revolution. Factories burned coal for energy. Gasoline burned by cars and trucks added greatly to air pollution. By the mid-1900s, air quality in many big cities was very bad. Incidents in London and in U. S. cities alerted people to the extent of the problem. It was clear that air quality needed to be protected. Q: Air quality is a measure of what in the air? A:
OPTIONS:
- clouds
- gases
- water
- pollutants

Answer: pollutants

Question: Answer the following question given this paragraph: Sensory organs such as the eyes contain cells called sensory receptors that respond to particular sensory stimuli. Q: Sensory organs that respond to particular sensory stimuli contain cells called what? A:
OPTIONS:
- artificial receptors
- stimulus receptor
- whole receptors
- sensory receptors
Answer: sensory receptors

input with options: Answer the following question given this paragraph: Gravity near the Earth pulls an object downwards toward the surface of the Earth with an acceleration of . In the absence of air resistance, all objects will fall with the same acceleration. The letter is used as the symbol for the acceleration of gravity. When talking about an object's acceleration, whether it is due to gravity or not, the acceleration of gravity is sometimes used as a unit of measurement where . So an object accelerating at 2g's is accelerating at or. Q: Represented in equations by the letter "g", what pulls objects down to the earth's surface? A:
OPTIONS:
- energy
- motion
- light
- gravity
output: gravity

Problem: OPTIONS:
- crust
- pyrite
- rock
- magma
Q: Answer the following question given this paragraph: Minerals form as magma or lava cools. Q: What is lava called before it reaches the surface of the earth? A:
Answer:
magma