input: OPTIONS:
- Calcium carbonate
- Decayed matter
- Sediment
- Drips of water
- Still water
- detritus
- calcite
- Tourists Now, answer this question: You are presented with the quiz "What are stalactites deposits of?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "stalactites are formed by deposition" and "most stalactites are formed from drips of water". So, what's the best answer to the question?
A:
output: Drips of water
You are presented with the quiz "What has skeleton made of tough tissue that contains a protein called collagen?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "cartilage is a tough tissue that contains a protein called collagen" and "sharks have a cartilage skeleton". So, what's the best answer to the question?

OPTIONS:
- mammals
- rocks
- animals
- sharks
- a fish
- cows
- humans
- plants

Answer: sharks
Problem: OPTIONS:
- vehicles
- weathering
- erosion
- mechanical
- flooding
- earthquake
- hurricanes
- tremors
Q: You are presented with the quiz "What means breaking down boulders by weather?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "weathering means breaking down rocks from larger whole into smaller pieces by weather" and "massive boulders and tiny rocks influence the sound and path of water". So, what's the best answer to the question?
Answer: weathering
Problem:OPTIONS:
- seeds
- competition
- courtship
- travel
- resistance
- solitude
- litter
- reading

You are presented with the quiz "What can result in offspring?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "mating is generally preceded by courtship" and "for example, a black rooster and a white hen mate, and the resulting offspring are gray". So, what's the best answer to the question?
****
A: courtship
You are presented with the quiz "hormones produced at the base of the what control other endocrine glands" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "most pituitary hormones control other endocrine glands" and "for example, the pituitary gland located at the base of the brain produces many hormones". So, what's the best answer to the question?
OPTIONS:
- proteins
- organ
- fats
- animals
- synapse
- humans
- brain
- Man
brain
You are presented with the quiz "What can muscle spasms cause?" But you don't know the answer, so you turn to your teacher to ask for hints. He says that "constriction occurs when the muscular walls of blood vessels contract" and "muscle spasms are involuntary contractions of a muscle". So, what's the best answer to the question?
OPTIONS:
- massive damage
- matter vibrating
- constriction
- friction
- Dehydration
- ketosis
- stretching
- photosynthesis

Answer:
constriction