Will be just fine and will live happy forever? Watch the video posted You think we humans are really going to collapse, or do you think humans Predictions true or are all of these just scientific exaggerations? Do Humans going to become extinct? Are all of these studies and Spreading fires, melting ice sheets, desertification, speciesĮxtinction, etc. Scientists speak of the sixth mass extinction, sea level rise, climateĬhange, deforestation, coral reef bleaching, water and air pollution,Īcid rains, soil erosion, urban sprawling, ocean acidification, People are obliterating Earth's environments and its natural resources. PLEASE REMEMBER THAT THE ASSIGNMENT WILL BE SUBMITTED THROUGH TURNITIN AND SAFEASSIGN, THEREFORE IT CANNOT BE PLAGIARIZED!!Assignment #7:Īre telling us that Planet Earth is coming down - collapsing - because Not only that, the S-waves are practically At this depth, the P waves become very sluggish and suffer a decrease in velocityįrom 13.64 km/sec to as low as 8.1 km/sec. At a depth of 2,900 kmīelow the surface, however, another major discontinuity is suddenly observed in the records of the Such a gradualĪnd uniform increase with increasing depth is on expected lines since their velocity is related toĭensity of the medium which is normally expected to increase with depth. The seismic waves that cross the mohorovicic discontinuityĬontinue to travel downwards with almost a uniform increase in their velocities.
Old apple: a very thin, hard and wrinkled sheet of rock covering. The crust is to the earth what skin is to an Old apple will help in clarifying the concept of crust. This layer (the crust) is merely 35 km thick (on an average) below theĬontinental surfaces and about 5-6 km thick under the oceans. Thus the Mohorovicic discontinuity marks the lower limits of the skin of the earth commonly
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