The Structure Of The Earth And Distribution Of Earthquakes And Volcanoes
Akopọ
The ground beneath your feet feels solid and still, yet it is riding slowly across a planet whose interior is hot enough to melt rock. The Earth is built in layers, and its rigid outer shell is broken into giant slabs called tectonic plates that drift a few centimetres a year, about the speed your fingernails grow. Where these plates meet, the planet shudders, splits and erupts.
In this lesson you will travel from the inner core to the crust, name and place the world's main plates, and learn why earthquakes and volcanoes are not scattered at random but line up neatly along plate boundaries. By the end you will be able to read a world hazard map and explain exactly what is happening at each kind of boundary.
Awọn Afojusun
- The characteristics of the layers of the Earth: inner core, outer core, mantle, crust, lithosphere.
- The names and location of the main tectonic plates and how tectonic plates move.
- Types of plate boundary: divergent/constructive, convergent/destructive, convergent/collision, conservative/transform and the location of earthquakes and volcanoes.
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Oriire fun ipari ẹkọ lori The Structure Of The Earth And Distribution Of Earthquakes And Volcanoes. Ni bayi ti o ti ṣawari naa awọn imọran bọtini ati awọn imọran, o to akoko lati fi imọ rẹ si idanwo. Ẹka yii nfunni ni ọpọlọpọ awọn adaṣe awọn ibeere ti a ṣe lati fun oye rẹ lokun ati ṣe iranlọwọ fun ọ lati ṣe iwọn oye ohun elo naa.
Iwọ yoo pade adalu awọn iru ibeere, pẹlu awọn ibeere olumulo pupọ, awọn ibeere idahun kukuru, ati awọn ibeere iwe kikọ. Gbogbo ibeere kọọkan ni a ṣe pẹlu iṣaro lati ṣe ayẹwo awọn ẹya oriṣiriṣi ti imọ rẹ ati awọn ogbon ironu pataki.
Lo ise abala yii gege bi anfaani lati mu oye re lori koko-ọrọ naa lagbara ati lati ṣe idanimọ eyikeyi agbegbe ti o le nilo afikun ikẹkọ. Maṣe jẹ ki awọn italaya eyikeyi ti o ba pade da ọ lójú; dipo, wo wọn gẹgẹ bi awọn anfaani fun idagbasoke ati ilọsiwaju.
- Which layer of the Earth is a solid ball of iron and nickel at the centre? A. crust B. mantle C. outer core D. inner core Answer: D
- At which type of plate boundary is new oceanic crust formed? A. conservative/transform B. convergent/collision C. divergent/constructive D. convergent/destructive Answer: C
- Oceanic crust sinks beneath continental crust at a destructive boundary because the oceanic crust is: A. thicker B. denser C. older D. cooler Answer: B
- The main force that moves tectonic plates is: A. tides in the oceans B. the Earth's rotation C. convection currents in the mantle D. gravity from the Moon Answer: C
- The Himalayas were formed at a boundary where: A. two oceanic plates move apart B. two continental plates collide C. plates slide past each other D. oceanic crust subducts under continental crust Answer: B
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