B hope this helps a lot :)
Explanation:
When current passes through the wires inside the bulb, electrical energy changes into heat energy and light energy. ... All parts of a circuit must be connected in order for current to flow through the circuit.
I believe it would be manual labor. During the Industrial Age of Employment, most people would have to do repetitive jobs, or manual labor. Design, engineer, and knowledge broker were not common during this time.
Answer:
<h2>PROTEINS</h2>
Explanation:
Many important molecules in the hman body are proteins like enzymes, antibodies, e.t.c.
Enzymes are a type of protein that speed up chemical reactions.
Igneous rock?? sorry if this is wrong
