Europe is sometimes called a "peninsula of peninsulas", to draw attention to the fact that Europe is a relatively small, elongated appendage to Asia, and that a large part of Europe is made up of peninsulas.
The earth and venus are two planes both of them share the same geologic history but the environment on venus is district as the rotation of the planet is fast as compared to earth and has a very rugged and dry landscape now.
The picture of mars and moon and repeaters and intermediate cases, of dryness and loss of original atmosphere by solar winds. Primary is solar winds and degassing of the crust of rocks
Mars too had a thick atmosphere filled with water vapor and oceans and was a habitable planet like earth but after some point of time mars chemical and physical properties changes to a certain extent that now most of <u>95% of the atmosphere was filled with carbon dioxide and 2.6% </u>of nitrogen, presence of dust methane and other harmful greenhouse gases are in abundance
Due to heavy bombardment period and erosion of rocky mass by sun and celestial bodies.
