thin buffer zone that exists before the nearest layer above the stratosphere

coldest layer is important in protecting the earth from planetary debris this is where most of the space rocks such as meteors, break down into smaller pieces such as that the time they reach Earth, they are already in very small pieces

buffer sone that exists above the mesosphere coldest region of the atmosphere

hottest layer

the lower part of the thermosphere is the ____ where particles of oxygen and nitrogen are electrically charged by the solar wind

the spectacular display of the colorful lights in the sky

if witnessed in northern region (arctic and northern Canada)

if witnessed in southern regions (Antarctica and southern Australia

buffer zone above thermosphere

encompasses all waters found on earth

portion of earth that I cludes the interior structure, rocks and minerals, landforms, and all physical processes on land that shape the Earth's surface

covers all the solid part of the earth from its surface into the deeper depth of the core

covers only the crust

continental crust is thicker than oceanic crust

most abundant element

transitional boundary between crust and mantle discovered by andrija mohorovicic

thickest layer of the earth it has the sublayer asthenosphere

lies on the upper part of the mantle and is directly below the crust

traditional boundary between the lower mantle and the outer core discovered by Beno Gutenberg

most abundant elements: iron and nickel

iron and nickel in liquid state

iron and nickel in solid state

transitional boundary between the inner core and the outer core

makes up all living components on earth