Seminar, Temas245-256R. Thapar, 1980 |
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Página 13
... earth . These lunar rock samples were brought from the moon , the natural satellite of the earth , by manned and unmanned spacecraft missions . Ever since its birth , the earth has been illuminated by the sun . The sun , in fact , is ...
... earth . These lunar rock samples were brought from the moon , the natural satellite of the earth , by manned and unmanned spacecraft missions . Ever since its birth , the earth has been illuminated by the sun . The sun , in fact , is ...
Página 14
... earth rotates about its polar axis completing a rotation in 23 hours 56 minutes with an equatorial speed of 1675 km / hour . This motion results in bulging at the equator and flattening at the poles . The equatorial diameter is 43 km ...
... earth rotates about its polar axis completing a rotation in 23 hours 56 minutes with an equatorial speed of 1675 km / hour . This motion results in bulging at the equator and flattening at the poles . The equatorial diameter is 43 km ...
Página 19
... earth rocks they have silica , aluminium , iron , magnesium , cal- cium , sodium , potassium , titanium , phosphorus and others , although in significantly different proportion than the earth rocks . These occur in the form of minerals ...
... earth rocks they have silica , aluminium , iron , magnesium , cal- cium , sodium , potassium , titanium , phosphorus and others , although in significantly different proportion than the earth rocks . These occur in the form of minerals ...
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