Is the position of the land and the sea permanently fixed? The construction of the sheet blocks says that the land and the sea are changing and that you can say, for example, that the sea and the sea are not changing? The himalayas have found the sea floor of our eastern sea, and the river's ancient delta has been discovered. Over the past 100 years, the land area of the netherlands has been expanding and the winding-up of the dutch land-filling engineering phase has caused land and sea-based changes. What do you find? Are mountain continents drifting? The question of continental drifting hypothesis: is it just a coincidence? South american explorer found out: if you were wagner, what would you have done? Evidence 1 -- why do south america and africa all have my presence in the tropical shallows? I can't fly. Why am i in south america and africa? Evidence 2 -- the similarity of animals is like a shredded paper, spelled after the print words and rows. Evidence 3 - the similarity of the ancient layers of the earth is not the ancient south american layer a, the ancient layer b continent drifting, assuming that the continent drifted 200 million years ago at the beginning of the phase: the continental driftor (1) (german scientist wegener) (2) the main content: 200-300 million years ago, the continents of the planet were interconnected (a continent) and surrounded by an ocean. Later, the original continent was divided into a few continents, slowly (), and scavenging shapes hide the distribution of today's seven continents and four oceans. (3) evidence: (i) continents on both sides of the ocean are able to kiss and reconcile, and the last paragraph of the 42nd page of the literature, which is very similar to the ancient tectonics of plants and animals, considers the following questions: 1. The rock rings can be divided into several plates? A deviating movement occurs on the cutting edge of the growth boundary, with the crust cracking into a crack valley or developing into a marine magma moving in relative motion, with the plates bumping into one another, forming a large wrinkled mountain system, an arc of the island or forming a trench ii, with the plates in constant motion of two large mountain bands along the continent's cracking zone: the pacific coast zone, the south of the asian continent and the north-western african mountains along the africa continent. Is the plate more stable inside or along the plate boundary? 1. How are the himalayas formed? Is it going to get higher or lower? Why? Is it going to be bigger or smaller? Why? The tectonics of the growth boundary ridges say that the earth is made up of six large plates; the pacific plates are almost entirely ocean, and the rest include both continents and oceans. The plates are in constant motion; they collide and squeeze so that the surface rises up and forms mountain ranges; and they stretch and stretch to break the surface and form a rift valley or sea. The internal crust of the plate is more stable and active in the area where the plate and the plate border. Volcanic earthquakes are occurring on the borderline between plates. There are two major volcanic zones on earth: the pacific rim volcanic earthquake and the mediterranean sea -- the himalaya earthquake. Volcanic earthquakes take place around the pacific ocean, a himalayas in the mediterranean sea, 29 fires in the volcano, mountains, why is there an earthquake in nepal? Nepal lies on a himalaya earthquake belt in the mediterranean sea (on the border between the indian plate and the asia-europe plate), where the crust is active and multi-volcanic. The mediterranean sea is located at the point of squeezing between the african plate and the eurasia plate, and the two plates are constantly squeezing, and the area will continue to shrink. The red sea lies on the stretching edge of the african plate and the indian ocean plate, two of which continue to stretch and stretch, expanding to form the new sea 3. There are very few earthquakes in the united kingdom. Within eurasia, the crust is stable, and the following phenomenon is explained by the science of plate tectonics, which is not prone to earthquakes. Test: do you have the potential of geologists? You know, my country is also a multi-earthquake country, and what am i supposed to do when an earthquake strikes? The chinese authorities are saying that the ban on xinghua holdings should be used to avoid high-altitude dangerous substances or suspensions: china's land is easy to avoid high construction poisons with glass curtain walls and to prepare high-line topographic maps of high-lines, including composites 15 and 16, and answer the following questions: 1. The middle altitude of the map is a. C. The relative height of the two points is 2. The acde 4 can drift, the flow of drifting rivers is 5。you climb the mountain, you choose ac, ad, which way up the mountain? Why?
