jueves, 10 de diciembre de 2009

definition of ecology

DEFINITION OF ECOLOGY

Ecology is the branch of science that deals with the interactions between organisms and their environment (chemical and physical factors).

Living organisms are grouped as biotic ecosystem, for example, bacteria, fungi, protozoa, plants, animals, etc. In short, the biotic factors are all living in an ecosystem or, more universally, in the biosphere.

Moreover, the chemical and physical factors are grouped as abiotic ecosystem. This includes all the inert environment, eg light, water, nitrogen, salts, food, heat, weather, etc.. After then, the abiotic factors are the nonliving elements in an ecosystem or the biosphere.

Ecology is a multidisciplinary science that draws on biology, climatology, Chemical Engineering, Mechanics, Ethics, etc..

WHY IS A MULTIDISCIPLINARY SCIENCE ECOLOGY?

Ecology uses to physics because all biotic processes are related to the transfer of energy from producers, which exploit the light energy to produce complex organic compounds to bacteria, which obtain chemical energy by the disintegration of the molecular structures other agencies.

Chemical Ecology uses because all metabolic and physiological processes of biosystems depend on chemical reactions. Furthermore, living things make use of chemicals found in the environment.

Ecology is related to geology because the structure of biomes depend on the geological structure of the environment. Living things can also modify the geology of a region.

For Ecology, Geography is a very important discipline because of the specific distribution of living beings on Earth.








INSTRUCTIVO TEXO

The so-called 3Rs Act, a proposal that popularized the environmental Informacion sobre 3R La ley de las tres erres (Reducir, Reciclar y Reutilizar)organization Greenpeace, calls for a reduction, reuse and recycling of the products we consume.


Reduce:

We must strive to reduce the volume of products we consume.
Many times we acquire things that are not needed just for the sake of buying. We do not think are needed to manufacture raw materials that we can not splurge like oil or water.
- The use of disposable products like paper towels or tissues.
- The use of aluminum foil, instead you can use Tupperware.
- The use of plastic bags for shopping, retrieves a taste for the baskets.
- Consumption of energy, use public transport, turn off the lights when not needed ...
- Drinking water, shower instead of bathe, sees that the taps do not lose ...

Reuse:

This is to reuse the maximum number of objects in order to produce less waste and spending the least amount of resources to manufacture new ones.
- Paper: sheets written on one side only can be used for notes or draw: the wrapping paper can be used a second time ...
- Toys: Those who do not use your children and not the tires, make them reach for charities that delivered to other children who need them.
- The glass: Try to buy liquids in returnable glass bottles.

Recycle:
Is to manufacture new products using materials obtained from old ones. If unable to reduce consumption and reuse try something that is at least recyclable.
- Paper: At home between the newspapers and magazines, cardboard boxes ... and put it in containers for recycling.
- Glass: Do the same as with the paper with any glass container. Child or baby food jars of jam are also recyclable.
- Plastic packaging, cans and packaging type brick: Bricks of milk, soda cans, water bottles ... also can be recycled depositing them in containers for this purpose.









INFORMATIVE TEXT

Air pollution

Air pollution is a mixture of solid particles and gases in the air. Emissions from automobiles, chemicals from factories, dust, pollen and mold spores may be suspended as particles. Ozone, a gas, is a fundamental component of air pollution in cities. When ozone air pollution is also called smog.
Some air pollutants are toxic. Inhalation can increase the chances of having health problems. People with heart or lung, older adults and children are at greater risk of problems from air pollution. Air pollution does not occur only on the outside: the air inside buildings can also be polluted and affect your health.

DESCRIPTIVE TEXT









DESCRIPTIVE TEXT

A brief description of the sources of pollution are:
Natural ground water contains some impurities, even if not affected by human activities. The types and concentrations of natural impurities depend on the nature of the geologic material from which ground water moves, and quality of makeup water. Groundwater that moves through sedimentary rocks and soils may occur in large numbers and composite materials such as magnesium, calcium, and chloride.
Some aquifers have high natural concentrations of dissolved constituents such as arsenic, boron and selenium.
Agriculture: Pesticides, fertilizers, herbicides and animal waste are sources of groundwater pollution from agriculture. These sources of agricultural pollution are varied and numerous: the leakage of fertilizers and pesticides during handling, loading and runoff for laundering pesticide spray or other application equipment, use of chemical upslope and a few hundred meters wells or water supply wells. Agricultural land is not sufficient drainage is considered by many farmers as land that has lost the benefit of production. Drainage wells then serve as a direct conduit to groundwater from wastewater.
The storage of agricultural chemicals near water pipes underground, open wells and abandoned wells and tanks or surface depressions where water tends to stagnate. Contamination may also occur when chemicals are stored in areas not covered, which does not protect against wind and rain, or stored in places where ground water flows from the chemical storage wells.
Industrial: Manufacturing and service industries have high demands for cooling water, process water and water for cleaning. Contamination of groundwater occurs when the water used is returned to hydrological ciclor.
The modern economic activities require transportation and storage of materials used in manufacturing and construction process.
Residential: residential water systems can be a source of high amounts of contaminants such as bacteria, viruses, nitrates, organic matter and human waste. Injection wells used for domestic wastewater disposal (septic systems, latrines, drainage wells to collect rainwater, wells, ground water recharge) are of particular concern for the quality of groundwater if they are located near the wells supplying the water used for drinking.