If DF = 27 and DE = 1\3 of DF what is EF ?

The two types of plains are coastal plains and lowland plains

Brazilians, like the u.s., communicate directly and you have to be careful with the use of slang. their communication style is a.low-context b. high-context

The action of eventually a low island to form. a. wind b. waves c. volcanoes d. tectonic plates