Answer: 3,000 satellites operating in Earth orbit, according to the US National Aeronautics and Space Administration (NASA), out of roughly 8,000 man-made objects in total.
Expiations: To see if anything coming or endangering us.
Answer:
a. They are arcs drawn between the North and South poles
Explanation:
- A longitude is a geographical coordinate that, measures the east and the west of the prime meridian and longitude is a considered to be an imaginary line and runs up and down vertically and connecting the two poles of north and south.
- These lines are known as the meridians and they are expressed by the Greek letter as lambda and connect to the point n the same longitude. They are important form the cartographic and the navigation purpose.
