Answer:
it is the Passive transport.
You can rub a permanent magnet against something else that can be magnetized, like a paper clip.
<span>The pros of having this rock plug is that the plug is protective and makes it so that Vesuvius is not likely to erupt again and the magma below has cooled and is harmless. The cons are that if there is another eruption, it will be deadly and create an avalanche of gas, rocks, and hot ash.</span>
Rain forests cover just 6 percent of the Earth’s land surface, yet they contain 70 percent of Earth’s species.
