Soils normally form from
a. the rock below it
b. animal deposits on the land
c. sediments transported by wind, water, and ice

In what ways has the human population put pressure on the land

Explain the value of statistics and other data to positive economics and to normative economics

Which of the following situations is an example of an internal migration? a. moving to mexico city, mexico b. moving to san diego, califormia c. moving to toronto, canada d. moving to london, england