instruction:
In this task, you need to write a topic word from the given fact. The topic word must have at least one word overlap with the given fact. The topic word often involves adding a new word from a related concept. In your topic word, use at least one word from the given fact. Topic words with two or more words work best.
question:
Fact: mechanical weathering is when rocks are broken down by mechanical means.
answer:
mechanical weathering.


question:
Fact: the looseness of soil increases the amount of oxygen in that soil.
answer:
increases the amount of oxygen in that soil.


question:
Fact: a plant requires photosynthesis to grow.
answer:

bamboo plant.