Geology of Mars of the dichotomy places a significant constraint on theories of its origin. Straddling the dichotomy boundary in Mars's western hemisphere is a massive volcano-tectonic province known as the Tharsis region or the Tharsis bulge. This immense, elevated structure is thousands of kilometers in diameter and covers up to 25% of the planet’s surface. Averaging 7–10 km above datum (Martian "sea" level), Tharsis contains the highest elevations on the planet and the largest known volcanoes in the Solar System. Three enormous volcanoes, Ascraeus Mons, Pavonis Mons, and Arsia Mons (collectively known as the Tharsis Montes), sit aligned NE-SW along the crest
Saving Planet Earth small – is valuable, if we wish to ensure a future that is healthy for all life on planet Earth so we have to save earth from various types of Pollution, Waste food, Drained Water etc. The earth is our mother planet in which we born and understand learn to speak, learn to walk and learned everything that we are now able to do. "It is only planet in our solar system on which life exists which incredible biodiversity. People all over the world celebrate this grand event all to protect flora and fauna and clean up the earth on