A woolly mammoth became nearly 10,000 years ago. The plane should welcome the passengers on board with a smile. Many big industrial cities suffer from that is very harmful to health. Don't your chance to get a promotion at work. Factories and plants pollute the atmosphere with a great amount of industrial . Forest fires can make many animal species their natural habitats. Many buildings during the earthquake. A rain can cause flooding and a lot of damage. warming makes polar ice caps melt.