Match the description with the type of seismic wave.

Fastest seismic waves.
[Choose]

Wave moves in a compression and
expansion type motion.
[Choose]

Can travel through only solids.
[ Choose ]

Arrives second at seismographs.
[Choose]

Wave moves in an up and down motion.
[ Choose]

Choices
Primary waves (P-wave)
Secondary waves (S-wave)

Which of the following observation darwin shape his concept of descent with modification? a) species diversity declines farther from the equator. b) fewer species live on islands than on the nearest continents. c) birds live on islands located farther from the mainland than the bird's maximum nonstop flight distance. d) south american temperate plants are more similar to the tropical plants of south america than to the temperate plants of europe. e) earthquakes reshape life by causing mass extinctions.