Using 3 seismograms, epicenters can be calculated using the difference in arrival times of: Question 9 options: Microwaves and Radio Waves Ocean Waves and Sound Waves R-Waves and T-Waves P-Waves and S-Waves.

C14 hope it your welcome

Answer( solar wind );

Hey there  jaylajakara15p8gvfy! question:   approximately what per cent of russia is used for permanent cropland? answer: b) 10%hope this ! -jayden

The us is first  the  u.s. economy  remains the  largest in the world  in terms of nominal  gdp. however, the  u.s. economy  loses its spot as the number one  economy  to china when  measured  in terms of  gdp  based on ppp. in these terms, china's  gdp  is $23.19 trillion exceeds the  u.s. gdp  of $19.42 trillion