I believe it is B i took this test last year.
When air is heated up the molecules spread out and move faster, so heat rises because it is less dense than the cooler air around it.
Answer:
The bacteria are autotrophs that oxidize hydrogen sulfide in vent water to, Other processes seem to take place very slowly at vents
Explanation:
<span>Ferrite Magnets (</span><span>ferromagnetic or ferrimagnetic) </span>are the kinds of magnets in a fridge magnet. <span>A refrigerator magnet is made of </span>powdered ferrite<span> (iron rust) and a liquid binding agent of </span>plastic<span> or rubber. The two are heated, mixed together, and poured into a sheet mold which is then exposed to a strong magnetic field.</span>
