Fossil fuels are: being formed as rapidly as they are being consumed. found mainly in igneous rocks. formed from the remains of plants and animals. renewable.

When studying the calumet region of illinois and indiana alfred meyers noted four stages of development as new groups occupied this land in stage 2 farmers used the land primarily to grow food for their familes and their small communities

Soweto was the site of one of the that swept across south africa in the late 1970s. in his effort to end apartheid, desmond tutu turned to . the united states responded to south africa’s apartheid policy in the 1980s by .

How do oceanographers measure the salinity of ocean water?