The lower boundary of earth’s crust is called the?
singleAnswer
core–mantle boundary Mohorovičić discontinuity Moho
Core–mantle boundary Mohorovičić discontinuity
lower boundary of earth's crust
Mohorovičić discontinuity Exosphere Core–mantle boundary Earth's crust Plate tectonics Crust (geology) Upper mantle (Earth) Asthenosphere Continental crust Mantle plume
The Mohorovičić discontinuity usually referred to as the Moho, is the <b>boundary</b> 
between the Earth&#39;s crust and the mantle. ... in material as the waves pass 
through the Earth, and is commonly accepted as the <b>lower</b> limit of the <b>Earth&#39;s</b> 
<b>crust</b>. The exosphere is a thin, atmosphere-like volume surrounding a planet or natural 
satellite ... The most common molecules within <b>Earth&#39;s</b> exosphere are those of the 
lightest ... The <b>lower boundary</b> of the exosphere is called the exobase. It is also&nbsp;... Schematic view of the interior of <b>Earth</b>. 1. continental <b>crust</b> 2. oceanic <b>crust</b> 3. 
upper mantle 4. <b>lower</b> mantle 5. outer core 6. inner core <b>Earth</b>&#39;s <b>crust</b> is a thin shell on the outside of <b>Earth</b>, accounting for less than 1% of 
<b>Earth&#39;s</b> ... The <b>boundary</b> between the <b>crust</b> and mantle is conventionally placed at 
the Mohorovičić ... Estimates of average density for the upper <b>crust</b> range 
between 2.69 and 2.74 g/cm<sup>3</sup> and for <b>lower crust</b> between 3.0 and 3.25 g/cm<sup>3</sup>. Plate tectonics is a scientific theory describing the large-scale motion of seven 
large plates and the movements of a larger number of smaller plates of the <b>Earth</b>&#39;
s lithosphere, ... The location where two plates meet is called a plate <b>boundary</b>. ... 
As explained above, tectonic plates may include continental <b>crust</b> or oceanic 
<b>crust</b>,&nbsp;... In geology, the <b>crust</b> is the outermost solid shell of a rocky planet, dwarf planet, or 
natural ... <b>Earth</b>, however, has two distinct types: continental <b>crust</b> and oceanic 
<b>crust</b>. ... The upper part of the <b>crust</b> probably averages about 88% plagioclase (
near the <b>lower</b> limit of 90% defined for anorthosite): the <b>lower</b> part of the <b>crust</b> 
may&nbsp;... The upper mantle of the <b>Earth</b> begins just beneath the <b>crust</b> and ends at the top of 
the <b>lower</b> mantle at 670 km (420 mi). Temperatures range from approximately 
200 °C (392 °F) at the upper <b>boundary</b> with the <b>crust</b> to approximately 900 °C (
1,650 °F) at the <b>boundary</b> with the <b>lower</b>&nbsp;... The asthenosphere is the highly viscous, mechanically weak and ductile region 
of the upper mantle of the <b>Earth</b>. It lies below the lithosphere, at depths between 
approximately 80 and 200 km (50 and 120 miles) below the surface. The 
lithosphere–asthenosphere <b>boundary</b> is usually referred to as LAB. ... The <b>lower</b> 
<b>boundary</b> of the asthenosphere is not well defined. Continental and oceanic <b>crust</b> on the upper <b>earth</b> mantle. Continental <b>crust</b> is the 
layer of igneous, sedimentary, and metamorphic rocks that forms the ... silicates 
and aluminium minerals and has a <b>lower</b> density compared to the oceanic <b>crust</b>, 
... mostly by plate tectonic processes, especially at convergent plate <b>boundaries</b>. A mantle plume is a proposed mechanism of convection of abnormally hot rock 
within the ... The processing of oceanic <b>crust</b>, lithosphere, and sediment through 
a ... There is no other known major thermal <b>boundary</b> layer in the deep <b>Earth</b>, and 
so the ... A hot mantle plume is predicted to have <b>lower</b> seismic wave speeds&nbsp;...
Mohorovičić discontinuity
Crust (geology)