Matching Pairs Zero and First ConditionalsOnline version Match the sentence halves by Maria Inés Ortelli 1 When more tourism is introduced, 2 If we plant a variety of flowers, 3 If an animal is badly injured, 4 If tigers are better protected, 5 If the area of the Arctic ice gets smaller, 6 When an area of jungle is cleared, there won't be many polar bears left. their numbers will probably increase. the land is often used for farming. we'll see a lot more butterflies. it has many benefits for local people. it isn't able to hunt for food.