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what happens to gravitational potential energy when a boulder falls off a cliff?
a. it remains constant
b. it is converted to kinetic energy
c. it increases
d. it is converted to elastic potential energy

In iceland, the mid atlantic ridge runs through the center of the contry. what can you conclude about the apperence of iceland many thousands of years from now?

7. describe two strategies that parents can use to cope with stress. 8. describe the three types of childcare available to families. 9. what can parents do to be more involved in their children's education at home and at school? 10. which factors should a parent consider when choosing a childcare option?

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin