Random question?

A drop of red food coloring is added to a bowl of water. Several minutes later, all of the water is red. Which of these describes the change that took place?

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Question generated: How are green plants an important part of the carbon dioxide-oxygen cycle?

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

Answer: Which type of water reservoir contains the largest volume of fresh water?

question: Write a question you would see in a school textbook. OPTIONS:
- to measure the density of Earth's atmosphere.
- to learn more about stars and planets.
- to observe the surface of the Moon.
- to better understand Earth.
answer: A telescope would be used for all the following except

An example of a grad-school level question?
As a result of rain forest deforestation, some organisms lose their habitats. Which is also an effect of rain forest deforestation?

Random question?
The kinetic energies of particles in a sample of matter are increasing. This sample is most likely