I would say D the Billingsella Corrugata, it IS in the oldest recorded time line, so by theory, it's the oldest (Don't quote me on that, I'm not %100)
Answer:
The building materials are influenced by local resources.
Explanation:
The farmers built structure based on the material obtainable in their area.Farmers having forest in their region built with wood obtained in that region,whereas those in the grassland used sod to build houses.
The world is round not flat cause first look image your viewing a picture of earth actually the earth is not really round its a shape called an ellipsoid which is kind of squatters and fat plus the world is round cause of the force of gravity
Explanation:
Air pressure
Measured using a tool called anemometer which looks like a wind vane.