What are the effects that ocean currents, waves, and tides have on the continental shelf?

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called

How do you think the different landforms of northern and southern europe would affect ways of life in those two areas

Ascientist is explaining how background cosmic radiation gives evidence of the big bang theory. she says that radiation has been detected everywhere equally as heat in the universe and is increasing. this has been shown to be residual radiation from the big bang. what error did the scientist make?