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1 .- What is global warming? Causes and consequences

is the long-term increase in average temperature of the atmosphere.
is due to the emission of greenhouse gases arising from human activities performed. For example fuel combustion, deforestation, livestock, etc.. ...

Causes:

"The greenhouse gases that rise into the atmosphere, which is what protects us from ultraviolet rays of the sun, and these gases the block, then let go more easily to these rays.

-fossil fuels and other human activities associated with the process of industrialization, the concentration of these gases in the atmosphere has increased considerably
in recent years, this causes the atmosphere to retain more heat.

"The evaporation of water is the cause of soil moisture is reduced due to the high rate of evaporation and sea level rise an average of nearly 2 feet off the coast of the Americas and the Caribbean.

-The main source of contamination by the emission of carbon dioxide are power generation plants based on coal, as issued 2.500 million tons per year. The second largest source, automobiles, emit almost 1.500 million tonnes of CO2 year.

Consequences of Global Warming: Climate



- Increase in average surface temperature of the Earth.

- The magnitude and frequency of rainfall has also increased due to increased evaporation of surface water caused by the increase in temperature.

-Increased intensity and frequency of hurricanes and storms by the increased evaporation of water. Health




-An increase in the temperature of the Earth's surface will result in an increase in respiratory and cardiovascular diseases, infectious diseases caused by mosquitoes and tropical pests, and prostration and dehydration due to heat.

Surface Water Quality

-Despite increased the magnitude and frequency of rainfall events, the water level in lakes and rivers will decline further due to evaporation caused by higher temperature.

"By increasing the magnitude and frequency of rainfall will also increase the incidence and intensity of floods and sedimentation of water bodies result of high runoff and low soil moisture.


groundwater quality

"As a result of increased temperature, the water level will drop due to evaporation, thus reducing the amount of available water in the aquifer.

"On the other hand, by increasing sea level salt water may seep into coastal aquifers, making its waters salinicen and unfit for human consumption.


This heating causes dryness of the land affecting agricultural activities and according to researchers in the not too distant future will melt the huge masses of ice at the poles, causing a rise in sea levels, endangering seriously la posibilidad de vida en las costas.

http://es.wikipedia.org/wiki/Calentamiento_global
http://www.nrdc.org/ondaverde/globalWarming/f101.asp
http://www.cambioclimaticoglobal.com/
http://sepiensa.org.mx/contenidos/2005/l_calenta/calentamiento_1.htm
http://www.oni.escuelas.edu.ar/olimpi99/autos-y-polucion/calentam.htm
http://www.circuloastronomico.cl/secciones/calentamiento2.html
http://www.bbc.co.uk/spanish/foros0011clima.shtml
http://alfinal.com/Temas/calentamiento.shtml

2 .- What is the greenhouse effect?.

You may

the phenomenon called greenhouse gases by which components of a planetary atmosphere retain some power to expel the ground after being heated by solar radiation. It affects all bodies endowed with atmosphere, scientific studies agree to the greenhouse effect that we are living on earth is accentuated by the emission of gases like carbon dioxide and methane, all this human activity.

The greenhouse effect keeps the earth receives the rays of the sun out into space in its entirety.

A) The cycle is formed in B and C is responsible for rising temperatures of our planet.

B) water vapor, carbon dioxide (CO2) and methane gas are a natural layer in Earth's atmosphere that traps some of the energy from the Sun

C) The Earth's surface is heated by the sun But it does not absorb all the energy but reflects some of it back into the atmosphere.

D) About 70% of solar energy reaching the Earth's surface back into space. But part of the infrared radiation, 30% is retained by the gases that produce the greenhouse effect and returns to the surface.

E) As a result of the greenhouse effect keeps the Earth warm enough to make life possible on Earth. In the absence of the phenomenon, the climatic fluctuations would be intolerable. However, a small change in the delicate balance of global temperature can cause serious damage. In the past 100 years the Earth has increased between 0.4 and 0.8 º C in average temperature.

http://es.wikipedia.org/wiki/Efecto_invernadero
http://www.geocities.com/edu112ve/efectoi.html
http://www.tecnun.es/Asignaturas/ecologia/Hipertexto/10CAtm1/353BalEn.htm
http://www.bbc.co.uk/spanish/especiales/clima/ghousedefault.shtml
http://www.ecopibes.com/problemas/invernadero/que.htm
Http://www.monografias.com/trabajos12/efin/efin.shtml
http://www.portalplanetasedna.com.ar/efecto_invernadero1.htm # efe

3 .- What is acid rain?.

called acid rain is the rain water (liquid or solid precipitation and fog) that are contaminated in the atmosphere, which are characterized by their acidity and deterioration of the environment. The lower the pH level of the water becomes more acidic.

The main pollutants are sulfur dioxide (SO 2 ) and oxides of nitrogen (NOx), pure rain water normally has a pH near 5.6, is slightly acidic by content of carbon dioxide in the atmosphere, the mist on the contrary, is around 4.5.

acid rains occur mainly in large cities by the large amount of gases produced by industries and motor vehicles, it also can occur in the mining centers and any place where they are large industries because of the large amounts of gases mentioned above.

damage that may occur in acid rain are:

- Aquatic Ecosystems.

- Terrestrial Ecosystems.

- Buildings and Construction.

http://lluviasacidas.pe.tripod.com/
http://lluviasacidas.pe.tripod.com/resumen/id2.html
http://es.wikipedia.org/wiki/Lluvia_Ã duced
http://www.monografias.com/trabajos5/lluac/lluac.shtml
http://www.bibliotecavirtual.com.do/Geografia/LLuviaAcida.htm
http://www.genciencia.com/2006/08/27-un-tercio-de-la-superficie-de-china-afectado-por-la-lluvia-acida

4. - What are the physical processes Chemicals? (Classes, causes, effects).

A physicochemical process is a set of chemical and physical operations ordered in the transformation of some initial materials in different end products. A product is different from another when different composition, is in a different state or changed their conditions. Each of these operations is a unit operation within the overall process.

Causes:

- A man trying to find new experiments with the physical processes are mixtures of chemicals, which do not lose their properties to do these operations.
- Many Sometimes nature do chemical operations in the basement with chemicals which give us a physical process because it can they put in their normal state after a while.

Consequences:
"In many cases the chemicals leaking underground and emerge from obstructing air.
"These chemicals, some are gases and harm the living, breathing problems.

Classes:

Absorption: in chemistry is a physical or chemical process in which atoms, molecules or ions pass from a first state of matter to another incorporated into the volume.

Condensation: physical process that involves the passage of a substance in gaseous form to liquid form. Is the reverse of boiling.

Boiling: is the physical process in which a liquid becomes a gas.

Evaporation: is the physical process whereby atoms or molecules in the liquid goes to gas, having taken enough energy to overcome surface tension.

Dew: is the opposite physical process of evaporation.

Solidification: is a physical process is a change of state of matter from liquid to solid.

Sublimation: consisting of the state change of the solid material to gas, bypassing the liquid state.

http://www.sagan-gea.org/hojaredsuelo/paginas/26hoja.html http://es.wikipedia.org/wiki/ Proceso_fÃ-psycho
http://www.monografias.com/trabajos12/tratag/tratag.shtml
http://www.sc.ehu.es/iawfemaf/archivos/materia/00112.htm

5) What is presented in Piura?

The evaporation of the seas and some recervorios or dams that are farther up Piura.

Condensation is when the evaporation of water becomes clouds.

The Presipitación rainfall is given in Piura by the market in February, March and early April.

6) Are the biological systems? Causes, Consequences and
classes are the main processes of a subject, so you can live, it can be any living being.

Causes:

-are caused by gases used to perform these processes.

"These systems are caused us because if you did not die living.

Consequences:

"Often these systems use gases that obstruct the ozone layer.

-Contribullen global warming is happening.

Classes:

autopoiesis: is the ability to place systems themselves.

animal behavior: is the branch of biology that studies the behavior of animals in the wild.

Development: process by which an organism develops from its origins to achieve adult status.

Digestion: is the process of transformation food that are ingested into simpler substances to be absorbed.

Evolution: is the continuous process of transformation of species.

Excretion is the biological process by which an animal of your body eliminate toxic substances, acquired through diet or metabolism.

Termination: is the disappearance of a species or species group.

Photosynthesis: consists of a series of processes by which plants algae and some bacteria capture and utilize light energy to convert inorganic matter to its external environment in organic matter used for growth and development.

Homeostasis: is the set of functions (biological or artificial) that allow self-adjust, measure or take into account something for comparison, or deduction, in order to maintain consistency in the composition, properties, structure and / or routines of the internal environment of an organism or system influenced by external actors.

Inheritance: is the set of phenotypic characters and transmitting Genome an individual's offspring.

Immunity: is when a body of any living being can defend against viruses and diseases.

Metabolism: are the changes that exist in a living being.

Reproduction: is a biological process that allows the production of new bodies, one common feature of all known life forms.

Breathing: is the process by which an organism exchanges oxygen and carbon dioxide to the environment.

http://es.wikipedia.org/wiki/Autopoyesis
http://es.wikipedia.org/wiki/Reproducción
http://es.wikipedia.org/wiki/Metabolismo
http://es.wikipedia.org/wiki/Inmunidad
http://es.wikipedia.org/wiki/Herencia
http://es.wikipedia.org/wiki/Homeostasis
http://es.wikipedia.org/wiki/Fotosíntesis
http://es.wikipedia.org/wiki/Extinción
http://es.wikipedia.org/wiki/Excreción
http://es.wikipedia.org/wiki/Evolución
http://es.wikipedia.org/wiki/Comportamiento_animal
http://es.wikipedia.org/wiki/Desarrollo
http://es.wikipedia.org/wiki/Digestià ³ n

7 .- Biogenesicos Element description.

biogenésicos elements are called (trainer of life, bios, meaning "life" and genesis, "origin" or "training") to those involved in the creation of living beings. The most important are carbon, hydrogen, oxygen and nitrogen.

Living organisms can be considered as complex chemical systems that grow and are maintained at the expense of acquiring energy and environmental matters environment. Despite the enormous variety of plant and animal species that exist in the biosphere organisms have common properties in its organization and chemical composition are the result of natural selection over millions of years.

The chemical composition of living beings has been determined both by the availability of materials in the environment like the special properties of some atoms and molecules that can perform specific functions in the processes of life.

biogenésicos elements are called the chemical elements that form a permanent part living beings. When compared qualitatively and quantitatively the elements that become part of the living and the earth's crust, are enough differences that may explain, at least in part, taking into account some considerations essentially chemical.

approximate relative abundance of the main elements in organisms and in the earth's crust (in percentage):

	Number atomic Earth		crust	ocean water	Human Body
H	1	0,120	2,882	66,200	60,563
C	6	0.099	0.055	0.002	10.680
N	7	0.003	0.007	---	2.440
O	8	48.880	60,425	33,100	25,670
In	11	0. 640	2554	0290	0075
Mg	12	12,500	1784	0.034	0.011
P	15	0.140	0.079	---	0.130
S	16	1.400	0.033	0.017	0.130
Cl	17	0.045	0.011	0.340	0.033
K	19	0.056	1.374	0.006	0.037
Ca	20	0460	1878	0006	0230
It	14	14,000	20,475		--- ---
Al	13	1.300	6.251	---	---
He	26	18.870	1.858	---	---

http://www.ipmeducar.com.ar/apuntes/material/quimica/compuestos-carbono.doc
http://medicina.usac.edu.gt/quimica/atom/introducci_n.htm
http://ciencias.ucv.cl/biologia/mod1 / b1m2a005.htm
http://www.elprisma.com/apuntes/quimica/compuestosdelcarbono/

8 .- How has altered the water cycle?.

Water exists on Earth in three states: solid (ice, snow), liquid and gas (water vapor). Oceans rivers, clouds and rain are in constant change: the surface water evaporates, cloud water precipitates, rainfall seeps into the ground, etc.. However, the total amount of water on the planet does not change. The circulation and conservation of water on Earth is called the hydrologic cycle, or water cycle.

The water cycle is altered in part due to nature and partly by the hand of people. Thus, natural phenomena such as wind erosion, affecting surface water. However, it is also true that actions like uncontrolled logging of forests, water pollution and air pollution, clearly anthropogenic origin, significantly influence the modification of the process.

addition, climate change inexorably that is occurring on the planet, caused by the above, results in severe effects that alter the water cycle. These include desertification in areas previously covered with vegetation, the water level rise from the sea by melting ice caps, due to increased temperature, or modificaci6n of rainfall in different regions of the planet.

The conservation and wise use of resources can help maintain balance. All natural processes are linked if and when a forest is cut water flows more easily into the ground where one makes the most important events of the cycle: evapotranspiration (the amount of vapor that plants bring to the process of water), to divert rivers from their course is altered harmony in other areas while accelerating the return of water to the sea, where evaporation is much slower by salinization. Even seemingly insignificant actions like leaving the tap open while brushing our teeth have side effects in nature. So we must use water rationally to prevent ecological changes of all kinds.

http://www.explora.cl/otros/agua/ciclo2.html
http://www.jmarcano.com/nociones/ciclo1.html
http://www.portalplanetasedna.com.ar/aire_agua01.htm
http://ga.water.usgs.gov/edu/watercyclespanish.html
http://library.thinkquest.org/04apr/00222/spanish/cycle.htm
http://www.windows.ucar.edu/tour/link=/earth/Water/water_cycle.sp.html
http://www.eraecologica.org/revista_04 / era_ecologica_4.htm? ciclo_del_agua.htm ~ mainFrame

9 .- What kind of food abound in Piura, and that places are? (which should be eaten) .

in San Lorenzo and in the Chira Valley: lemon, melon, watermelon, papaya, rice, tumbling

Salitral Querecotillo and Tambogrande: plantain, marigold, coconut, tamarind, avocado, passion

Morropón, Chulucanas and Cieneguillo: Barley, wheat, hard yellow cucumber, cape gooseberry, prickly

CROPS
	seasonal crops.
	Rice MAIZE: Producing Areas San Lorenzo Valley Valley Middle and Lower Piura Valle Alto Piura hard yellow corn : Cotton beans
	permanent crops.
	Sugarcane: Banana Mango Caf é Cocoa Pastures Lucuma Limón

http://www.adonde.com/turismo/piura.htm

http://www.regionpiura.gob.pe/detapiura. php? page = recpiura

10 .- Measures to prevent