Name:Write the letter of the correct match next to each problem.

1. outcome a. an attempt to do something

2. GPS b. a result or effect of an action, situation, etc

3. substantial

c. a model of global mean sea level that is used to

measure precise surface elevations

4. observe

d. to judge the number or amount of something by

using the information that you already have, and

adding, taking away, multiplying, or dividing numbers

5. magnitude e. the large size or importance of something

6. establish f. global positioning system

7. endeavour g. to discover or get proof of something:

8. surface h. large in size, value, or importance

9. geoid i. the outer or top part or layer of something

10. calculate

j. to watch carefully the way something happens or the

way someone does something, especially in order to

learn more about it

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