Which are the three most important types of commerce?

What did you notice about the location of the ancient civilisations of Egyptian, indus valley, shang and sumar

Suppose the fossil of an ancient fish was discovered high atop a mountain. What might this indicate about Earth's past

How long does it take Jupiter to rotate once?

A major difference between deep ocean currents and surface currents is that deep ocean currents

What are the 5 oceans

A wet monsoon is associated with high rainfall totals and is caused by

What are the two layers below earth's surface in which convection takes place?

How weary, stale, flat and unprofitable / seem to me all the uses of the earth?

If you are given with a soft metallic samples for example lead, magnesium, Tin, Aluminium etc. and you are given options to either use the Rockwell test or the Brinell test for measuring their hardnesses.

We use what we know about Earth-its structure, atmosphere, geologic activities, and processes-to prove or disprove our theories of other planets.