input: OPTIONS:
- abundant species
- keystone species
- omnivores
- endangered species Now, answer this question: Answer the following question given this paragraph: Q: Management programs based on population-regulating factors have helped prevent the extinction of many? A:
A:
output: endangered species

Answer the following question given this paragraph: Noble gases are also used to fill the glass tubes of lighted signs like the one in the Figure below . Although noble gases are chemically nonreactive, their electrons can be energized by sending an electric current through them. When this happens, the electrons jump to a higher energy level. When the electrons return to their original energy level, they give off energy as light. Different noble gases give off light of different colors. Neon gives off reddish-orange light, like the word "Open" in the sign below. Krypton gives off violet light and xenon gives off blue light. Q: What type of gas is used to fill glass tubes of lighted signs? A:

OPTIONS:
- synthetic
- inert
- natural
- noble

Answer: noble

Problem: OPTIONS:
- geology
- mineralogy
- sedimentary
- stratigraphy
Q: Answer the following question given this paragraph: The study of rock layers is called stratigraphy. Laws of stratigraphy help scientists determine the relative ages of rocks. The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface. Q: What do we call the study of rock layers? A:
Answer: stratigraphy

Problem:OPTIONS:
- white
- orange
- pink
- blue

Answer the following question given this paragraph: Red litmus paper turns blue when placed in a basic solution. Q: Red litmus paper turns what color when placed in a basic solution? A:
****
A: blue

Answer the following question given this paragraph: Infiltration is the process by which water soaks into the ground. Some of the water may seep deep underground. Some may stay in the soil, where plants can absorb it with their roots. Q: Water seeping into the ground is known as? A:
OPTIONS:
- invasion
- accumulation
- precipitation
- infiltration
infiltration

Answer the following question given this paragraph: Plants are the major producers in terrestrial biomes. They have five basic needs: air, warmth, sunlight, water, and nutrients. How well these needs are met in a given location depends on the growing season and soil quality, both of which are determined mainly by climate. Q: What broad group of living things serves as the major producers in terrestrial biomes? A:
OPTIONS:
- vases
- flowers
- animals
- plants

Answer:
plants