Using the most reliable information available, how much of the earth's land surface is used for agriculture today?

a) 10%, according to government surveys of land use
b) 30 to 40%, according to satellite imagery
c) 70%, according to surveys conducted by commercial jets
d) 90%, according to tax records from government agencies

What was the most difficult obstacle to overcome in the creation of an autonomous state after indian independence was achieved? a british willingness to go to war to retain the region b. religious differences between hindus and muslims c. ethnic differences between tribal regions d. indian princes' inability to decide on a format of government

Whats the biggest sea in the world?

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.