Greek civilization developed into independent city-states because Greece's mountains, islands, and peninsulas separated the Greek people from each other and made communication difficult. The steep mountains of the Greek geography also affected the crops and animals that farmers raised in the region.
<span>Drainage basins are often called watersheds. </span>
Answer: The correct answer is : The density of oil in a circular spot is given by :
s ( r ) = 50 / (1 + r), given in kg / m2 ; kilograms / square meter
s = density
The shape of a mineral´s crystal indicates its atomic structure.
Answer: atomic structure.