填空题 Match the environmental problem from the box with the correct definition 1-5.
flooding drought smog
extinction leak
A violent wind that destroys buildings and trees: hurricane
填空题 A cloud of air pollution that hangs over big cities: ______
填空题 The disappearance of a species of animal or plant: ______
填空题 A long period without rain: ______
填空题 The escape of a dangerous substance into the local environment: ______
填空题 An excess of water which submerges roads and buildings: ______