Which statements describe a seismograph? Select four options.

1. It has a curved graphing surface.

2. It is used to locate an earthquake’s epicenter.

3. It uses a needle on graph paper to measure seismic wave activity.

4. It determines the arrival time of P waves.

5. It measures data used to find the difference between the arrival times of surface waves.

Which of the following countries has declared itself nuclear free

Why is terracing used in southeast asian agriculture?

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of x? 6x + 5y = 2 4x + 2y = 8 a) subtract 2 times the second equation from 3 times the first equation b) subtract 3 times the second equation from 2 times the first equation c) subtract 5 times the second equation from 2 times the first equation d) subtract 2 times the second equation from 5 times the first equation