1 00:00:02,799 --> 00:00:09,800 In this video, we are going to learn about the human impact in the environment, especially in forests. 2 00:00:09,800 --> 00:00:41,659 Talk about forests. 3 00:00:41,659 --> 00:00:44,659 A forest is an area with a lot of trees. 4 00:00:44,659 --> 00:00:47,659 There are forests all over the world. 5 00:00:47,659 --> 00:00:50,659 There are different types of forests. 6 00:00:50,659 --> 00:01:12,519 Every forest varies depending on the location of the forest. 7 00:01:12,519 --> 00:01:19,519 For example, there are tropical rainforests, coniferous forests, and deciduous forests. 8 00:01:19,519 --> 00:02:07,290 They can occur naturally, but they can be affected positively and negatively by human behavior. 9 00:02:07,290 --> 00:02:13,289 If a forest is carefully replanted and allowed to grow, it can exist in balance. 10 00:02:13,289 --> 00:02:59,560 However, if the forest is cut down faster than it can grow back, then it will be used up quickly. 11 00:02:59,560 --> 00:03:12,330 Forests serve as home to many of the organisms that live on the land. 12 00:03:12,330 --> 00:03:16,889 Forests are also very important because they are major contributors 13 00:03:16,889 --> 00:03:21,770 to recycling and cleaning the world's supply of oxygen. 14 00:03:21,770 --> 00:03:28,569 Forests, jungles, trees, plants produce the oxygen we breathe. They are 15 00:03:28,569 --> 00:03:45,740 the lungs of the earth. We destroy them, we destroy ourselves. 16 00:03:45,740 --> 00:03:53,419 also provide wood, which is useful both as a construction material and as a fuel source.