Why is the systems approach so useful in studying both natural and artificial processes? Can you think of examples of artificial (i. e., human-built) systems other than those given in the text? Are they open systems or closed systems? (Think about the ma Cerials and energy in them . )

Amountain is larger than a hill, with steep sides true or false

According to the earth science reference tables, during which geologic time period were the continents of north america,south america, and africa closest together?

When geographers describe how two places are related to each other spatially, they are describing a. where the places are located in relation to one another b. what kinds of natural environments are around each place c. how each place is changing over time d. what kinds of cultures are in each place