The understanding of the living environment of life can not be separated from its environment. Both natural and social environment. We breathe requires air from the surrounding environment. We eat, drink, maintain health, everything requires an environment. Environmental understanding is everything that is around the human being affecting the development of human life both directly or indirectly. The environment can be distinguished into biotic and abiotic environments. If you are in school, the biotic environment is the schoolmates, Master's mother and employees, and everyone in school, also the various types of plants that exist in the school garden as well as the animals around it. As the abiotic environment of air, table chairs, whiteboard, school building, and various kinds of dead objects around. Often the environment consisting of human beings is also called environmentally. This social environment that forms a major association system of its role in shaping a personality person. In particular, we often use the environmental term to mention everything that affects the survival of all living beings on earth. As for the Law no. 23 of 1997, the environment is the unity of space with all objects and unity of living things including in humans and their behavior that moves and the welfare of humans and other living things. Environmental elements can be distinguished into three: namely: 1. Biotic elements (biotic) biotic, burning, which is the environmental environment consisting of living things, such as humans, animals, plants, and rounds. If you are in the school garden, then the effort is dominated by plants. But if it is in the classroom, the dominant biological environment is friends or fellow human beings. 2. Social Elements Cultural Social Cultural Elements, the Social Environment and Culture-made man who is a system of value, ideas, and beliefs in behavior as social beings. Community life can achieve regularity thanks to the value of the value and norms that are recognized and obeyed by all members of the community. 3. Physical element (abiotik) Physical element (Abiotik), ie the environmental element consisting of non-living objects, such as soil, water, air, climate, and others. The existence of physical environments is greatly its role for the survival of all life on earth. Imagine, what happens if the water is no longer on the earth or the air that is filled with smoke? Of course life on earth will not last reasonable. There will be drought disaster, many animals and plants die, irregular season changes, the emergence of various diseases, and others. Environmental damage is based on the factor causes, the form of environmental damage is distinguished to 2 types, namely: 1. The form of environmental damage due to the natural events of various natural disasters that have been raised by Indonesia has caused the impact of the destruction of the environment. The treasure of the tsunami waves that wander on the Moletic and Nias pole flames, and the 5-rack of the Ritcher scale that ranked the DIY area and surrounding areas, was an example of natural phenomena in an instantally able to change the form of the face of the earth. Other natural events that affect the environmental damage include: a. The volcanic eruption of volcanic eruption occurs because the magma activity in the earth's stomach that causes strong pressure out through the peak of the volcano. The danger caused by the volcanic eruption, among others, in the form of: 1) the rain volcanic ash, causing respiratory disorders. 2) Heat lavas, destroying, and deadly lets go through. 3) Heat clouds, can turn off the living things that are passed. 4) gas containing poison. 5) Solid material (rock, gravel, sand), can overwrite housing, and others. breakfast. Earthquake earthquakes are the extent of earth's skin that can be caused by several things, among themselves magma activities (volcano activity), the occurrence of land down, as well as the plate movement at the bottom of the ocean. Man can measure how much the earth's intensity, but humans do not can predict when the occurrence of earthquakes. Therefore, the dangers caused by the earthquake are more powerful than the volcanic eruption. At the time of the earthquake occurred several events as direct or indirect consequences, among them: 1) various buildings collapsed. 2) The ground on the surface of the earth broke, the road becomes broken. 3) landslides due to shocks. 4) There was a flood, due to the destruction of the embankment. 5) The earthquake that occurs on the seabed can cause tsunami (pairs wave). C.. The hurricanes of hurricanes occur due to airflow from high-pressure areas to low pressurized areas. This air pressure difference occurs due to the difference in striking air temperature. The hurricanes of stretches for countries in the Pacific and Atlantic Ocean regions are common. For regions of the California region, Texas, to the Asia as well as Korea and Taiwan, the danger of hurricanes is a seasonal disaster. But for Indonesia is newly felt in the mid of 2007. This indicates that there has been climate change in Indonesia is inablished by the existence of global warming symptoms. The dangers of hurricanes can be predicted through satellite photos describing the state of the earth's atmosphere, including the image of the hymn, direction, and speed. The hurricanes of the hurricanes (nipples) can cause environmental damage in the form: 1) knocking down the building. 2) Drugs of farm and plantation areas. 3) Fruiting flights. 4) Large large waves that can drown the ship. 2. Demand damage because human human factors as the environmental ruler in the earth plays a major role in determining the environmental sustainability. Humans as God's creation beings are able to change the world's face from a simple life pattern to the modern form of life today. But unfortunately, often what humans do not be balanced with the thinking of future future generations. Many of the progress achieved by humans bring a bad impact on environmental survival. Some forms of environmental damage due to human factors, among others: a. The occurrence of pollution (air pollution, water, soil, and sound) as an impact of industrial estate. breakfast. The occurrence of floods, as a poor impact of drainage or water disposal system and error in maintaining the river area and the impact of forest destruction. C.. The occurrence of landslides, as a direct impact of the destruction of the forest. Some well-active human immigrants are also directly impacted the environmental damage, among others: a. Wildline logging (deforestation). breakfast. Hunting. C.. Ruined the mangrove forest. d. The swamping of the swamps for settlements. Hey. Disposal garbage in any place. f. Wildlife in the river (das) area. g. Utilization of natural resources naturally beyond the limit. Establishment of environmental conservation by the community with the government as a good citizen, the public must have a high concern for the surrounding environment around the world according to their respective abilities. Some of the efforts that can be used to the public relates to the preservation of the environment, among others: a. Soil preservation (flat land, tilt / hills) occurrence of landslide and flood disasters show events relating to soil problems. The flood has caused the erosion of soil layers by the flow of water called erosion which impacts the loss of soil fertility and the soil dye of the earth's surface. The landslides are caused because there is no other element that holds the layer of soil in place where it causes damage. If it is left to continue, it is not impossible if the environment changes to beland. The soil conservation efforts can be done by promoting tree or reforestation activities (reforestation) of the ground that the ground. For hills or mountains whose land position is tilted need to be built terrace or sudkedan, so it is able to inhibit the rain rate of rainwater. breakfast. Air air preservation is a vital element for life, because every breathing organism requires air. You know that in the air contained the gas of a gas, one of them is oxygen. Air dirty due to dust or smoke of combustion of combustion causes density oxygen levels. This situation is very harmful to the survival of each organism. Then need to keep tips to keep the freshness of the environment to keep clean, fresh, and healthy. Efforts that can be done to keep the air clean and healthy, among others: 1. Treating tree planting or ornamental plants around us. Plants can absorb harmful gases for humans. Plants are able to produce oxygen through the process of photosynthesis. The destruction of the forest causes millions of plants disappear so that the oxygen production for the atmosphere is far-reduced, in addition to the plants also remove the water vapor, so the air humidity will remain awake. 2. Purchase the emission reduction or disposal of the combustion of gas, both burning forests and burning smoke machines that come out of vehicle exhaust and chimney are the largest contributor of the dirty air in urban areas and industrial estates. One of the reduced efforts of hazardous gas emissions into the air is to use safe industrial materials for the environment, as well as the installation of filters in the mortgage of the factory. 3. Reduce or even avoid the use of chemical gas that can damage the ozone layer in the freon gas atmosphere used for cooling on the air conditioner and refrigerator and used in various cosmetic products, is gas that can be lifing with ozone gas, resulting in the abox abox layer. The ozone layer is the layer in the atmosphere that plays a film for the earth, because it is able to reflect the ultraviolet rays to space that the sun is emitted. Excessive ultraviolet rains will damage the skin tissue and cause increased air temperature. Global warming occurs among them because of the thinning of ozone layers in the atmosphere. C.. Preservation of forest exploitation of continuous forests has been continued to have been in advance until now is not being balanced with planting, causing forest areas to be damaged. Human-residential illegal is one of the main causes of forest damage. Though forests are a sustainability of life on earth, because forests not only provide food and material production, but also oxygen producer, landing layer, and storing water reserves. Efforts that can be done to preserve forests: 1) Reforestation or replacement of forests. 2) banned forest department. 3) Implement a selective logging system in cutting trees. 4) Implement a logging system in forestry activities. 5) Implement severe sanctions for those who violate the provisions on forest management. d. The preservation of the sea and the beach is like forest, the sea also as a potential natural resource. Damage of marine and beach biota is much due to human act. Pilling sand, coral in the sea, mangrove forest destruction, is a co-human activity that threatens the sustainability of the sea and the beach. The occurrence of abrasion that threatens the sustainability of the coast caused by the loss of mangrove forests around the beach which is a natural protector against the waves of the wave. As for efforts to preserve the sea and beaches can be done by: 1) Reclaim the beach by planting the mangroves in the area around the beach. 2) prohibits the coral strucks around the coast and on the seabed, because the coral is a habitat of fish and marine plants. 3) prohibits the use of explosives and other chemicals in search of fish. 4) prohibits the use of tiger puppets to find fish. Hey. The preservation of Flora and Fauna Life on Earth is a system of dependence between humans, animals, plants, and surrounding nature. The disconnection of one of the chains of the system will result in a disruption in life. Therefore, the sustainability of flora and fauna is an absolute thing for the sake of human survival. Efforts that can be done to maintain the sustainability of flora and fauna include: 1) establishing natural reserve and wildlife reservations. 2) prohibits wild hunting activities. 3) Promoting greening activities. From the school book