Problem: OPTIONS:
- stays constant
- Temperature
- energy
- Energy.
- decreases
- nothing
- Evaporation
- increases
Q: You are presented with the quiz "What happens to the density of a gas when heated?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "if gas is heated then that gas will expand" and "if a material is heated, it expands and the density decreases". So, what's the best answer to the question?
Answer: decreases
Problem:OPTIONS:
- barnacles
- animals
- feces
- molecules
- fungi
- cows
- insects
- planets

You are presented with the quiz "What can have special excretory structures?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "some arthropods have special excretory structures" and "insects are the largest group of arthropods". So, what's the best answer to the question?
****
A: insects
You are presented with the quiz "What has increased in the air dramatically over the last decade?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "carbon dioxide concentrations in the air have increased over the last decade dramatically" and "cO 2 is carbon dioxide". So, what's the best answer to the question?
OPTIONS:
- oil
- sugar
- coal
- Cars
- H2O
- CO 2
- He
- O2
CO 2
You are presented with the quiz "What requires great amounts of water to survive?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "an aquatic animal requires great amounts of water to survive" and "dolphins are an aquatic mammal closely related to whales and porpoises". So, what's the best answer to the question?
OPTIONS:
- a tortoise
- leeches
- a dolphin
- a lizard
- a snake
- trout
- mussels
- amphibians

Answer: a dolphin
Question: You are presented with the quiz "What wets the skin, and when it evaporates, it cools the body?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sweat wets the skin, and when it evaporates, it cools the body" and "perspiration There are about 2 million sweat glands in the average human body". So, what's the best answer to the question?
OPTIONS:
- heat energy
- acetic acid
- Air conditioner
- salt and water.
- Skin oil
- water vapor
- Perspiration
- A towel
Answer: Perspiration
input: OPTIONS:
- With their voice
- Chemical energy
- mechanical waves
- With their eyes
- during the day
- With their movements
- With their hormones
- electrically Now, answer this question: You are presented with the quiz "How do ants communicate?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "ants communicate with chemicals called pheromones" and "pheromones are insect hormones". So, what's the best answer to the question?
A:
output:
With their hormones