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

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: Q: What do we call the study of rock layers? A:
Answer: stratigraphy

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

Q: Red litmus paper turns what color when placed in a basic solution? A:
****
A: blue

Q: Water seeping into the ground is known as? A:
OPTIONS:
- invasion
- accumulation
- precipitation
- infiltration
infiltration

Q: What broad group of living things serves as the major producers in terrestrial biomes? A:
OPTIONS:
- vases
- flowers
- animals
- plants

Answer:
plants