Freshwater - water that does not have too much salt. Is found in most lakes and rivers.
Fertilizers - Natural products (manure, compost) or chemicals that fertilize the soil and help the development of plants.
Salt water - water that contains enough salt. It lies in the seas and oceans.
Global warming - the gradual increase in the average temperature of the Earth.
Asteroid - block and rock in space.
Cloning - play mode that allows you to copy a cell or an individual from the DNA (deoxyribonucleic acid) present in the chromosomes.
Comet - huge ball of ice and dust in space.
Continent - a vast expanse of land. There are seven continents on earth: Asia (the largest), Africa, North and South America, Antarctica, Europe and Oceania (the lowest).
Shedding - polluting operation performed by certain oil companies is to pour the sea water containing waste oil.
Erosion - the erosion of land surface by the action of weather events such as rain and wind.
Fossil - the remains of plants and prehistoric animals preserved in rocks.
Hurricane - Powerful storm rain clouds (nimbus) with hundreds of kilometers long, with average wind speeds of over 100 km / h.
Water table - the shallow groundwater exchange, fed by rainwater that infiltrates the soil.
Mangal - set of vegetables that typically develops in m logo along the coastal regions with high temperatures and need simultaneously fresh and salt water.
Mangrove - is the queen of the mangrove tree.
Meteoroid - little rock in space, usually a fragment of asteroid.
Mineral - a solid substance composed of chemicals.
Monoculture - cultivation of the same type of plant in the ground and even several years.
Orbit - curved path of a planet or other body around a star or a moon around a planet.
Permafrost - permanently frozen soil found in very cold regions such as Siberia and the Great Canadian North. Due to the climatic reheating, defrosting these lands will slowly and release methane, a gas with particularly strong greenhouse effect.
Noise Pollution - There is in nature a biological balance between all living beings. This system in balance organisms produce substances that are useful to other organizations and so on. The pollution will exist whenever waste (solid, liquid or gas) produced by microorganisms or released by man in nature, are higher than the carrying capacity of the environment, causing changes in species survival. Pollution can be understood also as any modification of existing ecological balance.
Pollution is mainly produced by man and is directly related to the processes of industrialization and consequent urbanization of humanity. These are the two contemporary factors that can clearly explain the current pollution levels. The pollutants are the possible variables and are able to change water, soil, air, etc..
Pollution is therefore an assault on nature, the environment in which man lives. The effects of pollution are now so large that there are already numerous organizations defending the environment.
