Tortoise differ from turtles in four aspects, but the most important is that tortoises are terrestrial and turtles are from the sea: First, turtles live only 15 to 20 years, the longest 30 years, while tortoises live 100 years on average, reaching one up to 180 years. Second, the turtle has the soft shell to swim, while the tortoise has hard shell to defend itself on land. Third, tortoises are animals with long paws and nails, while turtles have fins and can not walk ashore; finally the turtles are peaceful and calm, while tortoises are adapted to a hostile environment and are brave and ferocious animals.
Consider how granite changes form. Granite is an igneous rock that forms when magma cools relatively slowly underground. It is usually composed primarily of the minerals quartz, feldspar, and mica.
