The main reason for land subsidence is
a. the destruction of plant life.
b. the removal of water from aquifers.
c. land exploitation.
d. desertification.

What did the native title act do? a. it recognized and protected aboriginal rights to land. b. it stated that aborigines were to be counted as part of the census. c. it established aboriginal languages as official. d. it granted aborigines suffrage.

Which events occurred during the space race? check all that apply. (a) nasa was established. (b) yuri gagarin orbited earth. (c) the soviet union launched salyut. (d) the united states launched skylab. (e) the united states launched explorer 1.

Write a 150word essay describing the effect of people's activities on the environment in the region.