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4. What measures the energy released at the source of the earthquake?
a. Magnitude
b. Perimeter
C. Altitude
d. Heights
5. Which of the following instrument is used to measures earth movement?
a. Seismograph
b. Intensity scale
C. Richter scale
d. Mercalli scale​


Sagot :

Answer:

4. a. Magnitude

5. a. Seismograph

Explanation:

Magnitude refers to the measure of earthquake intensity

Seismographs refers to instruments used to measure ground motion (particularly during earthquake)