An example of a grad-school level question?
Some students were investigating the relationship between position, time, and speed. The students marked the initial position of a toy car. The students set the car into motion and marked the position of the car each second. Which of these are most appropriate for recording and analyzing the students' data?

I just took a test in school today. What question was I asked?

Question I was asked: The digestive system breaks food into simple substances that the body can use. What system carries these simple substances from the digestive system to other parts of the body?

Random question?

The surface of the Moon is covered with craters. Most of these craters were formed by

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Question generated: What is the role of decomposers in a food chain?

Problem: Write a question you would see in a school textbook.

Answer: The continuous changes of a seed to an adult plant that produces seeds is known as a

Problem: Write a question you would see in a school textbook.

Answer:
When nitrogen-rich runoff from farms enters a nearby farm, it causes abundant growth of algal mat on the pond surface. As a result, underwater plants in the pond begin to die. Identify the limiting factor that is most responsible for causing the underwater plants to die.