Explanation:

1.While it is possible that plants and animals first moved onto the land in the Ordovician, fossils of terrestrial life from that period are fragmentary and difficult to interpret. Silurian strata have provided likely ascomycete fossils (a group of fungi), as well as remains of the first arachnids and centipedes.

2.Layering, or bedding, is the most obvious feature of sedimentary rocks. Sedimentary rocks are formed particle by particle and bed by bed, and the layers are piled one on top of the other. Thus, in any sequence of layered rocks, a given bed must be older than any bed on top of it.

3.Surface rupture is an offset of the ground surface when fault rupture extends to the Earth's surface. Any structure built across the fault is at risk of being torn apart as the two sides of the fault slip past each other. ... Structures that span a surface fault are likely to suffer great damage surface ruptures.

4.Cementation refers to the growth of new minerals between the sediment grains. These new minerals bind the sediment grains together. ... A third common cementing mineral is calcite, which also precipitates from ions dissolved in the water in the pore spaces during lithification.

5.Liquefaction is a phenomenon in which the strength and stiffness of a soil is reduced by earthquake shaking or other rapid loading.

6.Leaf imprints of an ancestral species of Ginkgo resembling the present-day Ginkgo biloba have been found abundantly in sedimentary rocks of the Jurassic Period of the Mesozoic Era (140-200 million years ago) when dinosaurs roamed the earth.