input: OPTIONS:
- paper
- books
- trees
- birds
- grass
- flowers
- fibers
- plants Now, answer this question: You are presented with the quiz "What needs to grow for paper to be made?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "creating paper requires cutting down trees" and "trees only grow to be cut down". So, what's the best answer to the question?
A:
output: trees
You are presented with the quiz "Which chemical controls sexual development and reproduction in females?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "sex hormones are chemical messengers that control sexual development and reproduction" and "estrogens are female sex hormones". So, what's the best answer to the question?

OPTIONS:
- acetic acid
- Hemoglobin
- Fructose
- barnacles
- animals
- Estrogen
- Pesticides
- Baby spray

Answer: Estrogen
Problem: OPTIONS:
- Pesticides
- pollutants
- bones
- toxins
- fossil fuels
- calories
- contamination
- blood
Q: You are presented with the quiz "Eating something that contains what can have a negative impact on a living being's health?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "eating something that contains pollutants has a negative impact on an organism 's survival" and "organisms or living beings are literally things that are alive". So, what's the best answer to the question?
Answer: pollutants
Problem:OPTIONS:
- solid, liquid, gas
- important habitats
- Under 32 degrees
- heterotrophs
- colder and wetter
- strong
- homogenous
- an organism's body

You are presented with the quiz "What are all alligators?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "all animals are heterotrophs" and "alligators are cold-blooded animals". So, what's the best answer to the question?
****
A: heterotrophs
You are presented with the quiz "A telephone is used for communication by humans between what span?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "atelephone is used for communication by humans over long distances" and "open water races of 5 to 25 kilometers are offered to long distance swimmers". So, what's the best answer to the question?
OPTIONS:
- 25 kilometers or more
- members of their own species
- global ecosystems
- 5 centimeters
- 1 meter
- Males and females
- A set number of times
- 4 microns
25 kilometers or more
You are presented with the quiz "What causes food to spoil?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "microorganisms cause food to spoil" and "bacteria are microorganisms that exist everywhere". So, what's the best answer to the question?
OPTIONS:
- viruses
- Pesticides
- influenza
- disease
- bacteria
- spills
- water
- ice

Answer:
bacteria