Monday, September 30, 2019
Continental Drift
The Earth is formed by plate tectonics continuously shifting causing a continental drift. This theory is more accepted than when it was originally published due to better technology providing better research and evidence. This paper discusses a little on both the plate tectonics and the continental drift as well as how the scientific method helped understand this process better. Eye words: Continental Drift, Scientific Theory, Plate tectonics In 191 5, a scientist by the name of Alfred Wagoner proposed the continental drift hurry. The idea that the continents are continuously moving either towards or away from each other. The continental drift is more widely accepted today than back when it was originally suggested by Wagoner. Wagoner had a hard time proving his theory to others because the lack of evidence he could provide. In the last part of the 20th century there has been a tremendous amount of evidence collected to support the theory of continental drift.Some of these include; F ossils from plants and animals that have been found on multiple continents, glaciers scars left in rocks in the most Zaire places, and you could also line up certain mountain chains together. That is a indication that they were once linked together. Also scientists have found that the magnetic fields in rocks indicate the original location is different than the present ones. The Earth's rotation and the centrifugal force towards the equator are considered the mechanism for the continental drift.Unlike back in Westerner's era, today we know more about how the earth works, like plate tectonics. Plate tectonics is the theory that helps to explain Earth's landscape features. There are two processes that plate tectonics go though; one pushes pieces f land together and the other spreads them apart. These are responsible for all the natural land forms on Earth's surface like mountains, valleys, and ridges in the ocean floor. The Himalayas are a prime example of plate tectonics colliding to gether to form a 2900 kilometer mountain range.Another example of that plate tectonics can create is the Ring of Fire; a 40,000 kilometer stretch of 452 volcanoes that is a horse shoe shape ranging along the cost from North America, South America, New Zealand, and Japan. To understand anything about continental drift, plate tectonics or science in mineral it helps to know how they come up with all this. This is the processes know at The Scientific Method, this method was not made up by any one person, but has Just been recognized as the natural method of obtaining reliable knowledge.This processes help us to understand the natural world. There are five steps to The Scientific Method and these are; identify the problem/idea, research the problem/ idea, formulate a hypothesis, conduct and experiment, and reach a conclusion. The two methods to go about this are experimental or descriptive, but both contain the same objective reasoning and process. For the research process you have qual itative and quantitative methods. Qualitative is more about observations and quantitative is more about measurements and data.Both play a important role and can be used together or you can use which ever suites the problem/idea better. After all this is done you finally have a theory that is a collective vision and has the potential to change society. Science can help us to answer questions about if we should be using nonrenewable energy resources by looking at the effects using these nonrenewable energy sources has on the Earths surface. First lets that a look at what these resources are; a nonrenewable energy source comes from something that will run out or not be replenished in many lifetimes.Most of these include fossil fuels like coal, petroleum, and natural gas. Using or burning these throws off the carbon balance of the earth's atmosphere by releasing carbon dioxide. This causes our greenhouse effect to be higher thus raising our temperatures faster than most animals can adap t. One example of the disturbance to wild life and habitat that drilling for these nonrenewable resources like oil and gas has is on the Arctic National Wildlife Refuge. This nineteen million acre Refuge is the largest land based unit of all the wildlife Refuge systems.This area remains mostly uninfluenced by humans, but is under attack by the oil industry's to open it up to drilling. By doing this it would disrupt the habitats of the animals living there, the fragile ecosystem is vulnerable to long-lasting disturbances because the harsh climate provides little time for recovery. Continental Drift Continental Drift, why True? Continental drift is the process of large mass of land and rocks unceasingly moving for a long period of time, which can be explained by what is called ââ¬Å"Plate Tectonicsâ⬠. Due to the fact that continental drift is a theory, there is evidence and other sets of statements to back it up. According to Wegener, a geologist stated that segments of the Earth has made continental drift true (possible) whilst other pieces of information supported that continental drift has happened and is happening. 1. Geological SimilarityThe geology in terms of rocks, plants and animals, ice-shapes, and the outline of the land matches. To begin with, the rocks in the eastern coastline of South America and the rocks in the western coastline of Africa has been found out that they both have the same broad belts of rocks. Not just South America and Africa, but the banks (coasts) where different continents meet have similar types. This leads to the second argument in the f ield of geological similarity of why continental drift is true: What makes you think that the continents have joined in the past?At least once in your life you looked at a global map whether a geography teacher told you to or you just wanted to. If you have examined close enough, a connection between continents could have been found. One may have realised how the shapes (outline) of the continents can be sorted to form a perfect jig-saw puzzle. As South America and Africa can be matched, other continents also have a connection between them. Furthermore, there is a relationship in terms of plants and animals between different continents.For instance, Alfred Wegener (geologist) found out that a similarity exists between plant/animal fossils in several continents. However, you may argue that it is a matter of coincidence. In this instance, though coincidence is impossible by the means of animals evolving and spreading. Due to the large Atlantic Ocean between South America and Africa, s cientists and geologists are capable of stating the such low possibility of how animals (plants) can cross the Ocean. In other words, they organisms have once evolved in one large mass of land (Pangaea).Lastly, the ice resembles in several continents. Everyone is aware that a continental ice sheet covered parts of South America, southern Africa, India, and southern Australia about 300 million years ago. If this is possible, the Atlantic Ocean must have not existed. Such movements of glaciers (glaciation) could not have occurred if an enormous ocean was through the routes of the movement. 2. How could such large mass of land move? Plate Tectonics comes to light when talking about how crusts can move.Crusts whether it being oceanic or continental, they are above the mantle. Due to the fact that the mantle consists of flowing magma (convection current), it can cause vertical and horizontal movements of the crust. The process is that as the core gets heated, the convection current flows and soon lead to the activity of land. This eventually allows land parts to move but slowly as our fingernails grow. 3. Position Difference Why do not we have evidence of covered ice sheets on northern continents like North America? Simple.Northern continents were near the equator about 300 million years ago. They were a part of the Pangaea and was located nowhere near compared to where it is. 4. Why care about this? As human beings, we adapt to our environment whether it is very poor or rich, satisfying or dissatisfying, or even clean or dirty. Continental drift as well will influence the environment we live in in the future. Continents are still flowing and may possibly allow a car to travel from North America to Asia. Let's all stick around to find out, shall we?
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