Answer:
The rotation of the earth
Explanation:
The rotation of the earth means that different sides of the earth are facing the sun at different times.This means that different parts are dark or bright, depending on night or day.
The tilt of the earth causes seasons, and the revolution of the earth creates years.
Answer:
Earthquakes are measured using instruments called seismometers, that detect the vibrations caused by seismic waves as they travel through the crust. Seismic waves can be both natural (from earthquakes) or caused by human activity (explosions).Yes, some people say they can predict earthquakes, but here are the reason.
Answer:
I believe that the answer ends most like a since humans live on the biosphere part of the world and we have affected the atmosphere around us causing to make it more dense and stuff
Timelines show historical events or periods because they can happen years or decades ago and that means historical.The purpose of a historical map is to describe or show important travels, rides, or routes that famous people in history took.Who is the author?
Can you find the authority or credentials of the publisher?
What if there is no author for an internet source?