Answer the following question given this paragraph: Angiosperms are important to humans in many ways, but the most significant role of angiosperms is as food. Wheat, rye, corn, and other grains are all harvested from flowering plants. Starchy foods, such as potatoes, and legumes, such as beans, are also angiosperms. And, as mentioned previously, fruits are a product of angiosperms that increase seed dispersal and are nutritious. Q: What are angiosperms most important function to humans? A:
OPTIONS:
- oxygen production
- gasoline
- water filtration
- food

Answer: food

Question: Answer the following question given this paragraph: (a) Initially, the system (a copper penny and concentrated nitric acid) is at atmospheric pressure. (b) When the penny is added to the nitric acid, the volume of NO2 gas that is formed causes the piston to move upward to maintain the system at atmospheric pressure. In doing so, the system is performing work on its surroundings. The symbol E in represents the internal energy of a system, which is the sum of the kinetic energy and potential energy of all its components. It is the change in internal energy that produces heat plus work. To measure the energy changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity calledenthalpy (H) (from the Greek enthalpein, meaning "to warm"). The enthalpy of a system is defined as the sum of its internal energy E plus the product of its pressure Pand volume V:. Q: To measure what changes that occur in chemical reactions, chemists usually use a related thermodynamic quantity, calledenthalpy? A:
OPTIONS:
- ion exchange
- evaporation
- entropy
- energy
Answer: energy

input with options: Answer the following question given this paragraph: Some mirrors have a curved rather than flat surface. Curved mirrors can be concave or convex. A concave mirror is shaped like the inside of a bowl. This type of mirror forms either real or virtual images, depending on where the object is placed relative to the focal point. The focal point is the point in front of the mirror where the reflected rays intersect. You can see how concave mirrors form images in Figure below and in the interactive animation at the URL below. The animation allows you to move an object to see how its position affects the image. Concave mirrors are used behind car headlights. They focus the light and make it brighter. They are also used in some telescopes. Q: The point in front of a mirror where the reflected rays intersect is known as what? A:
OPTIONS:
- reflective point
- boundary point
- periodic point
- focal point
output: focal point

Q: Answer the following question given this paragraph: Earth is the third planet from the Sun. It is the only planet with large amounts of liquid water, and the only planet known to support life. Earth is the only inner planet that has a large round moon. Q: What is the only known planet with large amounts of water? A:

OPTIONS:
- saturn
- jupiter
- mars
- earth

A: earth

input: OPTIONS:
- humans
- water
- air
- sunlight Now, answer this question: Answer the following question given this paragraph: Secondary pollutants form from chemical reactions that occur when pollution is exposed to sunlight. Q: Secondary pollutants form from chemical reactions that occur when pollution is exposed to what? A:
A:
output: sunlight

Question: Answer the following question given this paragraph: As with the hydrogen-ion concentration, the concentration of the hydroxide ion can be expressed logarithmically by the pOH. The pOH of a solution is the negative logarithm of the hydroxide-ion concentration. Q: The negative logarithm of the hydroxide-ion concentration of a solution is called? A:
OPTIONS:
- the hil
- the hop
- the piel
- the poh
Answer:
the poh