This causes pieces of the continental crust to crack and pull apart. Some slabs of the crust sink, causing a rift zone. If the lithosphere continues to spread, a narrow sea can form. Continued spreading produces an ocean basin and ridge system.
Confidence votes 3. a tiger is a mammal because they give milk to their young and produce milk. They breath the air form of oxygen and produce milk. They fulfil the criterion that need to be fulfilled by a mammal. Thse being that they are warm blooded, animals that give birth to live young and sucle them.
Though attractive, the tiger can be dangerous to its prey, with its significantly large teeth and long canines, which can reach 74.5 millimeters or 2.93 inches at their crown height. Tigers originate from the Asian continent and are not native to Africa as is often believed. There are Chinese and Bengal tigers that have been resettled into Africa.These animals are commonly released from zoos and introduced for the purpose of extending the survival and habitat of their species.