Which of the following is NOT true of dry lands?
A) Deserts generally lack sufficient water to grow crops that could feed a large population
B) Dry lands are generally not suited for intensive agriculture but may contain useful natural resources
C) Areas too dry for farming cover about 20 per cent of the Earth's surface
D) Some animals are adapted to the dry conditions here
E) No agriculture can take place in dry lands
Question 2
The current population of the Earth is about ________.
A) 2 billion
B) 5 billion
C) 7 billion
D) 9 billion
E) 500,000