Ageologist discovers fossils of marine animals in a layer of sedimentary rock in the dessert. based on this discovery, what conclusion can the geologist me now

The geologist can conclude that covering the water body with sand resulting in the formation of a desert area.

Explanation:

The desert must have been formed because of the change in the land forms over a period of time. Sedimentary rocks with fossils of marine animals are formed in water bodies like lakes, seas, oceans etc. The sedimentary rocks are formed because of the deposition of the sediments carried by water.The weather conditions must have resulted in the water body to drying up.

seismic wave -

an elastic wave in the earth produced by an earthquake or other means.

explanation:

since there isn't any suggested answers i will give you the reason and hopefully you can figure it

south africa, or rather all of africa, has not been in the location in which it is nowadays throughout the geological past. after the super-continent pangaea started to break apart, gondwanaland, in which was africa, moved further south, and parts of it came to be very close to the south pole. because the climate in this part of the world is very cold due to the very dispersed sun rays in there, what is now south africa, started to freeze, and the conditions were right for the formation of glaciers. the glaciers existed up until the period when gondwanaland started to break apart and what is now africa started to move towards north, sp it warmed up and the glaciers melted.