Explain the reason for having an equator and a prime meridian. how do these two lines us to navigate our world? describe your opinion in at least two to three sentences.

Which of the following is evidence to the past existence of glaciers?

What evidence supports geological processes changing the surface of the earth? cutting down forests creates a decrease of habitats. tectonic plates uplift the rocky crust of earth to form mountains. competition in ecosystems creates a decrease in diversity. pollution runoff contaminates a lake.

The picture above depicts the berlin wall which divided in half from the 1960 to 1989 which type of boundary was the berlin wall