It points to the direction of where the wind is blowing and it shows how fast it’s going because of the front fan part
Answer:
By then, coke pig iron was cheaper than charcoal pig iron. Gas Lighting. Another major industry of the later Industrial Revolution where coal was central.
Explanation:
hope it helps
A-through an optimistic viewpoint.
When the air is heated, it rises from the earth's surface and it mixes with the winds constantly.