An example of law and demand at work would be ordering enough supplies to work with regardless of the price so that the job can get done.
In the passage this question was provided for, you should have been able to find the fallowing text, "Therefore it is hypothesized that Earth’s magnetic field is being produced by ionized iron moving about in the Earth’s liquid outer core. If Earth didn’t have a liquid (iron) outer core the Earth wouldn’t have its magnetic field."
Answer: Magnetic Field
The answer is D. their study of human anatomy.
may i have the brainliest?