bca763770

padlet.com/denaaqel2004/3t516da35yyf6bnk Dena aqel Earth is the planet of life. DENA AQEL2004 20 18:41 2020 ,‫دﯾﺳﻣﺑر‬ page (5) The tilt of the earth’s axis during its rotation around the sun is 23.5 degrees, and the duration of the earth’s two revolutions around Iron constitutes the highest percentage of the earth’s core itself is (1670) kilometers per hour, which is a xed velocity and materials, and it is responsible for the Earth’s magnetic eld. This therefore we do not feel its rotation. eld is an envelope that protects the earth, extends around it for more than (60) thousand kilometers in space, and prevents many dangerous emissions from the sun. page (4) page(2) The earth consists of four main shells (water, rocky, gaseous, and Planet Earth is the third planet in terms of distance from the sun, biological), so water constitutes (71%) of the surface of the Earth, as it is about (150) million km away, and this makes it receive a and it is the only planet that has water on its surface that is the constant amount of solar radiation and the appropriate energy for basis of life, and (oxygen) gas, which is (21%) It is an atmospheric living organisms. gas that living things need to breathe. page (1) The shape of the Earth is semi-spherical (elliptical), so the equatorial diameter of the Earth is longer than the polar one, and the difference in the length of its diagonals is due to the rotational movement of the earth around itself, which leads to the atness of the earth from its center and reaches the equatorial ocean (the distance around the earth) (40075 km) and the polar ocean (40. 008) km. page (3)

※※※※※※