The Benefits Of Do Dreams Come True Essay
one. Those Greeks were humble farmers, able to use partially regenerated forests for a self-sufficient lifestyle that could later be seen in the Protestant work ethic and the pioneering spirit. The poet hectored his farmer audience with that could have been uttered by Ben Franklin’s . Athens was established before 1400 BCE and became an important Mycenaean city. It began its resurgence in the late years of Greece’s Dark Age, and between 900 BCE and 300 BCE it became one of the more remarkable experiments in the human journey. By 600 BCE, the reviving civilization had once more eroded the Greek countryside, and , also known as the Tyrant of Athens, , as it was about the only crop that could grow on the badly eroded hills, and farming them did not increase erosion. Greek cities never became very large because the environment could not support large cities. When Greek cities reached about 20,000-to-30,000 people, new colonies were established. That practice led to the Greek colonies that dotted the Mediterranean’s periphery. Also, those colonies founded during the Greek classic era became a hinterland that helped support Athens. There is still debate whether commercial, military, or Malthusian incentives/pressures led to Greek colonization, but with the obvious environmental degradation of Greece, I lean toward Malthusian dynamics being the impetus, and the other factors were making the best of the situation. People rarely leave their homelands if they do not have to.
Do Dreams Come True Essay Options
New York City Through the Years This page has been viewed more than 130,000 times; thank you so much! The response to my LAX Through the Years photo essay has. Essay On Republic Day 2014
I was born in 1958. during the , and I was trained from childhood to be a scientist. My first professional mentor , and was an hailed by a federal study as the world’s most promising alternative to the internal combustion engine. In 1974, as that engine created a stir in the USA’s federal government, I began dreaming of changing the energy industry. In that same year, I had my and awakenings. During my second year of college, I had my first existential crisis and a . I still held my energy dreams, however, and in 1986, eight years after that first paranormal event, that suddenly caused me to move up the coast from Los Angeles to Seattle, where I landed in the middle of what is arguably the . The company sold the that has ever been on the world market and it by using the most ingenious marketing plan that I ever saw. That effort was , which saw our technology as a threat to its revenues and profits, and my wild ride began. The owner of the Seattle business left the state to rebuild his effort. I and soon . My partner's experiences in Seattle radicalized him. My use of "radical" intends to convey the original "" meaning. Radicals seek a fundamental understanding of events (so they aim for the root and do not hack at branches), but more economically than in my partner's instance. He would never see the energy industry the same way again after his radicalization (also called "") in Seattle, but he had more radicalization ahead of him.
c. 4.6 billion years ago (“bya”)
The was the first mass extinction of organisms that could be seen with the naked human eye. There was an soon before the eon of complex life began, and there may have been mass extinctions of microbes before then, but the evidence is so thin for anything before then that scientists may never know just how many mass extinctions there were. However, bacteria and archaea, those , and those communities do not have the apparent instability of complex life’s food chains, so there may have been few mass extinctions in Precambrian times. Cyanobacteria have not fundamentally changed in billions of years, which means that its mode of living has always worked well enough to ensure its survival. No animals have anything close to such a lengthy pedigree.
Organisms begin to capture chemical energy.
There is also evidence that life itself can contribute to mass extinctions. When the eventually , organisms that could not survive or thrive around oxygen (called ) . When anoxic conditions appeared, particularly when existed, the anaerobes could abound once again, and when thrived, usually arising from ocean sediments, they . Since the ocean floor had already become anoxic, the seafloor was already a dead zone, so little harm was done there. The hydrogen sulfide became lethal when it rose in the and killed off surface life and then wafted into the air and near shore. But the greatest harm to life may have been inflicted when hydrogen sulfide eventually , which could have been the final blow to an already stressed ecosphere. That may seem a fanciful scenario, but there is evidence for it. There is fossil evidence of during the Permian extinction, as well as photosynthesizing anaerobic bacteria ( and ), which could have only thrived in sulfide-rich anoxic surface waters. Peter Ward made this key evidence for his , and he has implicated hydrogen sulfide events in most major mass extinctions. An important aspect of Ward’s Medea hypothesis work is that about 1,000 PPM of carbon dioxide in the atmosphere, which might be reached in this century if we keep burning fossil fuels, may artificially induce Canfield Oceans and result in . Those are not wild-eyed doomsday speculations, but logical outcomes of current trends and , proposed by leading scientists. Hundreds of already exist on Earth, which are primarily manmade. Even if those events are “only” 10% likely to happen in the next century, that we are flirting with them at all should make us shudder, for a few reasons, one of which is the awesome damage that it would inflict on the biosphere, including humanity, and another is that it is entirely preventable with the use of technologies .
Organisms begin to directly capture photonic solar energy.
Mass extinction events can seem quite capricious as to what species live or die. generally outcompeted their ancestral for hundreds of millions of years. Ammonoids were lightweight versions of nautiloids, and they often thrived in shallow waters while nautiloids were banished to deep waters. Both dwindled over time, as they were outcompeted by new kinds of marine denizens. In the and mass extinctions, deep-water animals generally suffered more than surface dwellers did, but the nautiloids’ superior respiration system still saw them survive. Also, nautiloids laid relatively few eggs that took about a year to hatch, while ammonoids laid more eggs that hatched faster. However, the asteroid-induced Cretaceous mass extinction annihilated nearly all surface life while the deep-water animals fared better, and nautiloid embryos that rode out the storm in their eggs were survivors. The Cretaceous extinction while and comprise another group of living fossils, although that status is disputed in 2014. was about the only land animal of significance that survived the Permian extinction and it dominated the early Triassic landmass as no animal ever has. It comprised about 95% of all land animals. Why , which was like a reptilian sheep? Nobody , but it may have been the luck of the draw. Perhaps relatively few bedraggled individuals existed in some survival enclave until the catastrophe was finished, and then they quickly bred unimpeded until , for the most spectacular species radiation of all time, at least until humans arrived on the evolutionary scene.