question: What sentence would provide a factual answer to this question: "the mass of a planet causes"

answer: the mass of a planet causes the pull of gravity on that planet
Problem: What is a random fact?

Answer: the Earth rotating on its axis causes stars to appear to move across the sky at night
Problem: Generate a sentence that contains a fact.

as the size of an object appears larger , that object will be observed better
Problem: Generate a sentence that contains a fact.
Sentence: the mantle is located just below Earth 's crust
Problem: Randomly generate a fact.

Random fact: an equinox occurs twice per year
question: What sentence would provide a factual answer to this question: "What cells can perform photosynthesis?"

answer:
plant cells can perform photosynthesis