Earth: is the third planet from the sun and densest and is fifth-largest of the eight planets in the Solar System. The age of earth is approximately 4.54billion years ago and its life appeared on surface within its first billion years. Average orbital of earth is 29.78km/s and speed 107,200km/h.
Earth is orbit around the sun but moon orbits around the earth. And land covers on earth is 20%, seawater is 80%, fresh water is 3%, suitable drinking water is 1%, 0.08% is world's drinkable water, and ice caps, Glaciers, & Permanent Snow is 1.74%, and Rivers is 0.0002%.
Shape of earth:
The shape of the earth approximates an oblate spheroid, a sphere flattened along the axis from pole to pole.
Heat:
Earth's internal heat comes from a combination of residual heat from planetary accretion about 20% and heat produced through radioactive decay 80%.
Earth is orbit around the sun but moon orbits around the earth. And land covers on earth is 20%, seawater is 80%, fresh water is 3%, suitable drinking water is 1%, 0.08% is world's drinkable water, and ice caps, Glaciers, & Permanent Snow is 1.74%, and Rivers is 0.0002%.
Shape of earth:
The shape of the earth approximates an oblate spheroid, a sphere flattened along the axis from pole to pole.
Heat:
Earth's internal heat comes from a combination of residual heat from planetary accretion about 20% and heat produced through radioactive decay 80%.
Earth's layer:
The layer of earth has 5 layers.The interior of the Earth, like that of the other terrestrial planets, is divided into layers by their chemical or physical (rheological) properties, but unlike the other terrestrial planets, it has a distinct outer and inner core.
0 comments:
Post a Comment