geological period उदाहरण वाक्य

उदाहरण वाक्य

1. In order to find 50 blocks of acceptable material, the limestone had to be from the Jurassic geological period, which ended 150 million years ago.
2. This water cycle is a vital mechanism for supporting life on land and is a primary factor in the erosion of surface features over geological periods.
3. Beginning 543 million years ago, in the early Cambrian geological period, this burst of evolutionary creativity produced the first creatures with teeth, claws, jaws and backbones.
4. Rocks from more recent geological periods such as the Jurassic, Cretaceous, and Tertiary periods usually contain acidic substrate which manifests itself in the nature of the soil.
5. They date from the very end of the Neoproterozoic, and in 2004 the location gave its name to the last geological period of the era, the Ediacaran.
6. During the past geological periods clam shrimp were apparently more numerous and diverse than they are now . 300 extinct species are known, and half as many living species.
7. Geochronology is different in application from biostratigraphy, which is the science of assigning sedimentary rocks to a known geological period via describing, cataloguing and comparing fossil floral and faunal assemblages.
8. A dominant genus from each geological period has been selected ( see figure 3e ) to show the slow alteration of the horse lineage from its ancestral to its modern form.
9. Which animals do or are said to copulate ? ( Please name the exact taxons those animals belong to, if possible . ) In which geological period did animals start to copulate?
10. Anthracite and bituminous coal were formed in the eastern and western regions of Pennsylvania respectively during the Pennsylvanian time in the Carboniferous Geological Period (  History of Anthracite Coal Mining ).