____________ dating is a method of dating a sample by comparing its position to the positions of other samples. Fill in the blank(s) with the appropriate word(s)
Relative
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Which of the following best describes what is meant by an ecological footprint?
a. It is the average size of the lot on which a family home is built. b. It is the number of acres necessary to grow enough food to support a family. c. It is the geographic area in which a person travels during the course of their average daily activities. d. It is the amount of biologically-productive land and water needed to supply the people in a particular country or area with the resources they need. e. It is the amount of tillable agricultural land necessary to supply the food requirements of a nation.
In the saturated zone of an unconfined aquifer, groundwater always flows ____.
A. from areas where the water table is low to areas where the water table is high B. toward stream beds C. from areas where the water table is high to areas where the water table is low D. away from stream beds E. from the poles toward the equator
Hygroscopic water and gravitational water are available for plant use
Indicate whether the statement is true or false
What country's main source of foreign exchange is ecotourism? Over 2.4 million tourists visited in 2013 alone
A) Mexico B) Honduras C) Costa Rica D) Peru E) Ecuador