Answer the following question given this paragraph: Population density is the average number of individuals in a population per unit of area or volume. For example, a population of 100 insects that live in an area of 100 square meters has a density of 1 insect per square meter. If the same population lives in an area of only 1 square meter, what is its density? Which population is more crowded? How might crowding affect the health of a population?. Q: What is the term for the average number of individuals in a population per unit of area or volume? A:

OPTIONS:
- population diameter
- population structure
- Density group
- population density

Answer: population density

Problem: OPTIONS:
- fossil compounds
- carbon
- coal fuels
- fossil fuels
Q: Answer the following question given this paragraph: Millions of acres of forest have been cut and burned to make way for farming. Figure below shows an example. Burning trees produces most of the same pollutants as burning fossil fuels. Q: Burning trees produces most of the same pollutants as burning what? A:
Answer: fossil fuels

Problem:OPTIONS:
- light
- ions
- atoms
- particles

Answer the following question given this paragraph: Radioactive elements and isotopes have unstable nuclei. To become more stable, the nuclei undergo radioactive decay. In radioactive decay, the nuclei give off, or emit, radiation in the form of energy and often particles as well. There are several types of radioactive decay, including alpha, beta, and gamma decay. Energy is emitted in all three types of decay, but only alpha and beta decay also emit particles. Q: Radioactive decay can give off energy and what else? A:
****
A: particles

Answer the following question given this paragraph: Flowering vascular plants also have diverse leaves. However, the leaves of all flowering plants have two basic parts in common: the blade and petiole. The blade of the leaf is the relatively wide, flat part of the leaf that gathers sunlight and undergoes photosynthesis. The petiole is the part that attaches the leaf to a stem of the plant. This occurs at a node. Q: What are the two basic parts that all flowering plants have in common? A:
OPTIONS:
- metal and petiole
- stalk and petiole
- leaf and petiole
- blade and petiole
blade and petiole

Answer the following question given this paragraph: Gene expression and protein synthesis are usually considered the same molecular process. Q: Gene expression and what else are usually considered the same molecular process? A:
OPTIONS:
- photosynthesis
- subtractive synthesis
- organism synthesis
- protein synthesis

Answer: protein synthesis

input with options: Answer the following question given this paragraph: Waves may reflect off an obstacle that they are unable to pass through. When waves are reflected straight back from an obstacle, the reflected waves interfere with the original waves and create standing waves . These are waves that appear to be standing still. Standing waves occur because of a combination of constructive and destructive interference. You can see animations of standing waves at the URLs below. Q: What do waves do when they are unable to pass through an object? A:
OPTIONS:
- produce off
- Roll over.
- develop off
- reflect off
output:
reflect off