1. At latitude of 45 degree the earth spins on its axis at the rate of 1120 km/hr.
2. 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.
3. The movement inside the Earth’s crust is studied by seismology.
4. Green House Effect means by trapping of solar energy due to atmosphere carbon dioxide.
5. Planet Venus is visible from Earth.

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