Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Discuss the supporting evidence as well as the counter arguments against Alfred Wegener's theory of continental drift.
It was in 1912 that the idea of continental drift gained a strong come-back, when Alfred Wegener propose for it; who supposed that landmasses were consolidated together all at once into big continent wholly called Pangaea and had since then driven separately. There are several solid grounds supportiRead more
It was in 1912 that the idea of continental drift gained a strong come-back, when Alfred Wegener propose for it; who supposed that landmasses were consolidated together all at once into big continent wholly called Pangaea and had since then driven separately. There are several solid grounds supporting this theory:
Grounds in Favor:
Among which are the Fit of Continents, meaning that if you ignore all other lines on your map and simply draw a line between their coastlines (the continental shelf), South America appears to fit perfectly in with Africa.
Fossil EvidenceSimilar fossil species were found on different continents which is an indication that these land masses once upon a time existed in close physical proximity, like the Mesosaurus.
The Geological Evidence: Rock formations or mountain ranges (like the Appalachian-Caledonian belt) that are similar between continents, indicating they share a common history Geologic feature -> Isostasy in Madagascar and Seychelles
Paleoclimate Evidence: The geological record contains rocks of glacial origin that are now distributed in essentially isolated localities across a number of continents, suggesting the existence at some time in the past of climates much more like those seen today than implied by barnacles.
Objections:
Mechanistic Explanation : A major criticism of Wegener’s theory was that there seemed to be no plausible mechanism by which continents could plow their way through the solid rock covering Earth nearly three miles deep.
Lack of Geological Processes: Some geologists claimed that the forces he suggested required to prod continents into motion were poorly understood (which was true) and Wegener’s theory lacked specific geological phenomena to explain how continental drift actually takes place.
Timing and Rate: Some of the issues raised by critics centered on the time and speed of continental drift as elucidated by Wegener where they noted that the movement of the continents was very fast and had not had a set time-frame.
Thus, one can state that Alfred Wegner offered a new magnificent theory of the continental drift which was based on the existence of geological, fossil and climatic evidence about the continental movement. Despite of its advantages like the match between continents and the related geological history, there were several objections concerning the absence of the reasonable mechanism and the detailed geological processes of the continental drift. These debates have since been followed by other debates that have facilitated new types of works and the coming up with of the theory of plate tectonics that explain the movement of Earth’s continent and oceanic plates.
See lessThere are similarities and interactions between the affirmative action adopted by India and USA owing to similar historical injustices faced by their respective vulnerable groups. Discuss.
India and the United States have implemented affirmative action policies in response to historical injustices faced by their vulnerable populations, reflecting similar goals and interactions : India and the United States have implemented affirmative action policies in response to historical injusticRead more
India and the United States have implemented affirmative action policies in response to historical injustices faced by their vulnerable populations, reflecting similar goals and interactions : India and the United States have implemented affirmative action policies in response to historical injustices faced by their vulnerable populations, reflecting similar goals and interactions:
Similarities:
Historical Context: Again, both countries underwent systematic prejudice or ‘discrimination’ of certain sections of the population on the grounds of caste in India and race in USA. Affirmative action seeks to remedy these injustices through enhancing equality as well as making provisions for the disadvantaged persons.
Policy Objectives: It is for these reasons that affirmative action policies in both countries aim at the promotion of diversity, inclusion and ultimately socio economic equity. These programs try to eliminate the long-standing systematic discrimination which excluded women of color from education, employment, and leadership.
Legal Framework: Reservations in educational institutions and public employment that India has in its constitution like Article 15(4) and Article 16(4) are similar to civil rights act of America of 1964 and other related laws that sought to ban reverse discrimination.
Interactions:
Global Influence: Amid the movement of affirmative actions, both countries have aided each other by providing models and references as southern India’s caste based reservations have helped the country while America’s race based policies have acted as a model for other countries to refer to and follow when it comes to affirmative action.
Challenges and Debates: Each nation encounters controversies and discussions on issues of the suitability, extent, and legal compliance of their affirmative action solutions. As such, key issues of discussion may include issues to do with the extent of meritocracy, issues of reverse discrimination, and the long term social ramifications of such policies.
In conclusion, India and the USA are different in choosing the target groups of affirmative actions and in terms of the legal regime regulating affirmative action policies; however, both states have similarities in historical conditions, goals of affirmative actions, and world positions. This way, their engagement in the practices of dealing with past injustices using affirmative action policies is presented as an ongoing struggle to achieve development which is inclusive in nature as well as striving for more social justice on the global level.
See less