What can happen when groundwater is depleted to irrigate crops?
a. increase in ground altitude
b. decrease in soil salinity
c. loss of sinkholes
d. loss of wetlands

Are divergent boundaries responsible for tsunamis?

The us and canadian governments are doing all of the following to combat environmental problems except a. encouraging the use of public transportation b. enacting clean water policies c. requiring emissions testing d. limiting animal populations in some regions

What are mountains that divide european russia from asian russia?