Page 41 - Key to Social Studies 2 (Workbook)
P. 41

HUMANS AND THE ENVIRONMENT
                                                                                   The Environment







               9   Look at the picture and tick   the correct information.

                   1.  No pollution.                                   4.  Fumes from factories.

                   2.  Plant more trees.                               5.  Waste from ships.

                   3.  Clear skies.



































              10   Look online for the picture of Earth 100 years ago. Compare it to how the

                   Earth looks now. What is different?
































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