- At latitude of 45 degree the earth spins on its axis at the rate of 1120 km/hr.
- It is six months long day in the northern polar region and six months long night in the southern polar region because earth is inclined towards its orbital plane.
- The movement inside the Earth’s crust is studied by seismology.
- Green House Effect means by trapping of solar energy due to atmosphere carbon dioxide.
- Planet Venus is visible from Earth.
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