- the mountainous west, the Great Plains, the Canadian Shield, the varied eastern region, and the Caribbean.
Explanation:
North America can be divided into five physical regions: the mountainous west, the Great Plains, the Canadian Shield, the varied eastern region, and the Caribbean. Mexico and Central America's western coast are connected to the mountainous west, while its lowlands and coastal plains extend into the eastern region.
Growing your own food instead of trading for other people's food
Answer:
An ecological network is a representation of the biotic interactions in an ecosystem, in which species (nodes) are connected by pairwise interactions (links). These interactions can be trophic or symbiotic.
Actually there are a number of geological specialists who study Plate Tectonics: Geo-dynamicists, structural geologists, geophysicists (including seismologists - earthquake scientists), vulcanologists. I'm not sure there is one term for those who study plate movemennts through time though.
