Author Question: The exploration of Earth's interior is possible because _______________ produce vibrations called ... (Read 31 times)

Melani1276 · **on:** Jul 27, 2018

The exploration of Earth's interior is possible because _______________ produce vibrations called seismic waves.

Fill in the blank(s) with correct word

Question 2

Where are the Cepheid and RR Lyrae variable stars located on the H-R Diagram?

a. just above and to the right of B type stars
b. just above and to the right of O type stars
c. in the variable strip
d. in the instability strip
e. outside the H-R Diagram as missing items