input: OPTIONS:
- ultraviolet
- alpha
- toxic
- gamma Now, answer this question: Answer the following question given this paragraph: Look at the classroom in Figure below . It has several sources of visible light. One source of visible light is the sun. Sunlight enters the classroom through the windows. The sun provides virtually all of the visible light that living things need. Visible light travels across space from the sun to Earth in electromagnetic waves. But how does the sun produce light? Read on to find out. Q: Lead shielding is used to block what type of rays? A:
A:
output: gamma

Answer the following question given this paragraph: Coal is the source of most electricity. Q: What is the source of most electricity? A:

OPTIONS:
- methane
- the Sun
- air
- coal

Answer: coal

Problem: OPTIONS:
- nasal
- subdermal
- superficial
- facial
Q: Answer the following question given this paragraph: The bones of the skull support the structures of the face and protect the brain. The skull consists of cranial bones and facial bones. The cranial bones form the cranial cavity, which encloses the brain and serves as an attachment site for muscles of the head and neck. In the adult they are tightly jointed with connective tissue and adjoining bones do not move. The auditory ossicles of the middle ear transmit sounds from the air as vibrations to the fluid-filled cochlea. The auditory ossicles consist of two malleus (hammer) bones, two incus (anvil) bones, and two stapes (stirrups), one on each side. Facial bones provide cavities for the sense organs (eyes, mouth, and nose), and serve as attachment points for facial muscles. The hyoid bone lies below the mandible in the front of the neck. It acts as a movable base for the tongue and is connected to muscles of the jaw, larynx, and tongue. The mandible forms a joint with the base of the skull. The mandible controls the opening to the mouth and hence, the airway and gut. Q: The skull consists of cranial bones and what other type of bones? A:
Answer: facial

Problem:OPTIONS:
- oxygen
- nitrogen
- hydrogen
- water

Answer the following question given this paragraph: Water is a common chemical substance on planet Earth. In fact, Earth is sometimes called the "water planet" because almost 75% of its surface is covered with water. If you look at Figure below , you will see where Earth's water is found. The term water generally refers to its liquid state, and water is a liquid over a wide range of temperatures on Earth. However, water also occurs on Earth as a solid (ice) and as a gas (water vapor). Q: What is a common chemical substance on planet earth? A:
****
A: water

Answer the following question given this paragraph: Reactants and products are equally abundant at equilibrium. Q: At equilibrium reactants and what are equally abundant? A:
OPTIONS:
- results
- proactives
- minerals
- products
products

Answer the following question given this paragraph: Amphibians have permeable skin that easily absorbs substances from the environment. This may explain why they seem to be especially sensitive to pollution. Monitoring the health and survival of amphibians may help people detect pollution early, before other organisms are affected. Q: What group of animals has permeable skin that makes them vulnerable to pollution? A:
OPTIONS:
- fish
- mammals
- reptiles
- amphibians

Answer:
amphibians