Cambrian period do the Appalachian mountains first start to appear. The Paleozoic Era and the Phanerozoic Eon were both preceded by the Cambrian Period.
An crucial turning point in the evolution of life on Earth occurred during the Cambrian Period, when numerous invertebrate species and the first fish-like vertebrates first appeared in the fossil record. The greatest record of Cambrian animal fossils, including soft-bodied creatures, may be found in the Burgess Shale. The Paleozoic era's Cambrian phase saw the most rapid explosion of evolution ever recorded. A staggering diversity of life, including many of the main animal groupings still extant today, emerged during the Cambrian Explosion. The chordates, which include vertebrates (animals with backbones) like humans, were among them. According to some experts, the appearance of predators was made possible by a slight, possibly transient increase in oxygen that abruptly crossed an ecological threshold. Carnivory's emergence would have sparked an evolutionary arms race that produced the explosion of various body kinds and behaviours that now populate the oceans. The team comes to the conclusion that a scarcity of oxygen and toxic hydrogen sulphide killed off a large number of Cambrian species. It is believed that similar circumstances led to the devastating Permian extinction 251 million years ago. According to Gill, there were multiple instances of fast extinction in the second half of the Cambrian.
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The answer is Accretion of material by the supermassive black holes located in the galactic cores and this is the cause of intense luminosity of the galaxies that are active like seyferts as well as quasars.Hope this is the answer and would help.
The view regarding God that is set forth consistently in the Bible is this: He did not come from anywhere.
No one made the Creator of the universe. He had no beginning, and will have no ending. He is the eternal, self-existing Being.
Here is what the Bible says about who made God:
God is eternal
God is everlasting in nature (Isa. 40:28), which is to say, he is eternal as to his very essence (Rom. 16:26; 1 Tim. 1:17). His existence is “from everlasting to everlasting.”Before the material creation was spoken into existence, he always was (Psa. 90:2).
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<span>As of 2016, farm and ranch families made up only two percent of the total US population. The amount of farmer and ranching families has declined at a fast pace since it's peak in 1935. In the last twenty years most of the decline can be blamed on how little farmers and ranchers make from the food they grow or raise. Farmers and ranchers only receive, on average, sixteen cents for every dollar that is spent on food in both grocery stores, down from about thirty-one cents for every dollar in the 1980's.</span>
Answer:
A
Explanation:
the stamp act because it says taxes and public documents.
