C Read each sentence. Write T if the statement is true or F if it is false. 1) Scientists think global warming could change the earth's temperature.

2) The burning of coal and oil helps our environment.

3) Mass communication has helped create a global village.

4) In subsistence farming, people grow crops to sell.

5) Developing countries are slowly developing their industries and econom

6) A collapse of the money supply in Thailand caused a recession in Asia.

7) China is the economic engine for Asia.

8) A fossil fuel is made from coal, oil, or natural gas.

9) No American cities suffer from industrial air pollution.

10) Fertilizers and pesticides can cause pollution.