Which human-induced change results in increased competition caused by an initial increase in the number of organisms in a habitat?
a. non-sustainable harvesting
b. nonnative species introduction
c. ozone layer depletion
d. mass extinction

Which of the following is typically not a characteristic of a foraging society? a. foraging societies are nomadic groups. b. foraging societies consist of small groups with ties based on kinship. c. individuals in foraging societies have few personal possessions. d. foraging societies have formal social and class structures

In which direction does the moving force of air flow? a-from warm temperatures to cold temperatures b-to areas of high pressure to areas of low pressure c-east to west d-from high elevations to low elevations

The separation of northern ireland from the republic of ireland is an example of