Some countries trash rivers which sometimes can end in the ocean because they are connected.
To learn about the cultures and all that great stuff
The O stars is the most luminous, then B, then A, F, G, K, and M stars are the least luminous_____ there must be a relationship between mass and luminosity.
I will say distance from the sea, ocean currents, direction of prevailing winds
Absolute monarchy and totalitarian dictatorship are similar because the people have no control over the government. I know this one from honors!