Is there a sentence fragment?During the Precambrian period, most of Earth's life forms lived in oceans. Meanwhile, land masses were mostly devoid of life.yesnoSubmit

During the Precambrian period, the Earth's crust formed, and life_____in the seas. *10 poinfirst appearedthe first to appearthe first appearanceapprearing first

It was in the primitive oceans that life began almost ___________ billion years back.A 1 B 3.5 C 2.5 D 6

Is this a sentence fragment?Until the variable harlequin toad was rediscovered in a remote mountain region of Costa Rica.yesnoSubmit

Five sentences related to a topic are given in the question below. Four of them can be put together to form a meaningful and coherent short paragraph. Identify the odd one out. Choose its number as your answer and key it in.Remarkably, extreme events of diversification and extinction happen more frequently than a typical Gaussian distribution would predict.Throughout life's history on earth, biological diversity has gone through ebbs and flows – periods of rapid evolution and of dramatic extinctions.Evidence for these ecological changes is found throughout the early and middle Cambrian fossil record but is even more apparent in deposits of exceptional preservation.We know this, at least in part, through the fossil record of marine invertebrates left behind since the Cambrian period.Instead of the typical bell-shaped curve, the fossil record shows a fat-tailed distribution, with extreme, outlier, events occurring with higher-than-expected probability.

5.Question 5Which one of the following statements is correct?1 pointArchea dominated the Earth and its atmosphere for the vast majority of the history of the Earth.After the rise of oxygen the archea all went extinct and we only find them in the fossil record todayNone of these statements is correctThe Archean on the Earth and the Noachian on Mars cover approximately the same time periods.During the Great Oxygenation Event photosynthetic microbes poisoned the atmosphere for much of the previous life on EarthThe banded iron formations occurred when methanogens reduced the iron ore leading to enhanced rusting.If photosynthesis had never developed on Earth we would have a climate much like that of Mars today6.Question 6