Evaluation


Solve the crossword puzzle



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ACROSS                                                             DOWN

4.   It maintains the temperature                      1. When water is too warm, corals
      needed to support life.                                      will expel the algae living in their
5. Often used to signify an uncontrolled                 tissues causing the coral to turn
intense fire that breaks out in the wooded            completely white.
areas due to many factors ranging from        2. It refers to the phenomenon
natural to man-made causes                                where the lower atmosphere
9. The primary greenhouse gas                           worldwide becomes warmer.
emitted through human activities.             3. the removal of a forest or stand
                                                                                of trees where the land is thereafter 
                                                                                converted to a non-forest use.                                                           
                                                                           6. Sea levels around the world are rising.
                                                                           7. The measure of the average
                                                                              kinetic energy of the molecules of
                                                                              an object, indicated by the rise
                                                                              and fall of the column of mercury
                                                                              in a thermometer.

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