Details . Result from chemical weathering
form by volcanic eruptions
have very poor soil that cannot be used to grow crops
form from deposited sediment

d.

thist title points out that you are explaining the nature of the u.s. government. it is the most specific. a representative government consists of a government where decisions are taken according to a voting system. the most essential aspect of a representative government is found in the different structures where voting rights are granted to different groups of people. for example, voting for governor, mayor, president, local police chief etc.

answer; observing;

answer; ( correlation );