What is climate differ from weather?
It is a good question because many people confuse it. Climate which the scientist determines the average weather occur over a very long time in the same place. How long until we can call it "climate"? It often need at least 30 years or more to detemine climate.
Weather, it just takes a very short time to measure,includes: air pressure, temperature, precitation,humidity and cloud cover. It also canchange many times in a short period of time, for example: today's weather change from sunny to cloudy, and it's a windy day.
If we are talking about the beijing's climate, we might think the summer is hot and the winter is cold. But, is it cold everyday in winter and hot in summer? The answer is no.According to many years data and measurements, we can figure out the average weather or general trend for the climate. In general in beijing winter is colder and sumeer is warmer. If you want to know the specific day's situation, that is called weather.So, now we have clear definition between weather and climate.
2 How does climate change affect us?
The climate play a very important role subject in the biosphere. It just not only effects all living's things, but also to a billion years ago, the Earth did not have any living things because it had a very poor climate. From animal fossils, we can know that are a billion years old. The climate become more and more suitable for humans and animals live, according the theory of evolution. But humans are still not happy yet. Vecause, with the development of economy, our life become more and more morden, but at the same time, the climate changes to become worse and worse. The factories emit many pollutants, and cars also pollute the air. The mainly polluting gases are SO2 and CO2, SO2causes acid rain and many important important historical buildings to be ruined., CO2 is a chief offender causing globle warming. Over the years, so many species of animals and plants border on extinction. So we know that it is very hecessary to stand together to protect the environment and ourselves. Global warming causes polar bear's habitat to shrink and become smaller and smaller. The polar bears can not find enough food, and then, they kill each other to save their own life. What an atrocity! If one day, our climate causes everything to die except for the human, will the polar bears action appear among the humans? Who knows? This kind of result? No one can imagine it. However we hope never to have to face these terrible circamstances of all our food sources dying.
2 The necessary to investigate climate change.
Maybe many people think, "investigate climate change" is the scientist job, no matter the result is what, it's none of their business, At least, in the short time, it cannot affect their daily life. If you have the same thought, you were wrong.
Through the investigation of climate change data, we can read how climate change in the past, and what had the climate changed bring to the human's life. "climate change" just like the natural's language, we can through its tendency combine with the situation what we face nowdays, understand waht the natural mother try to talking about to us and the predict what proble will we face in the future. To protect our living place, we can do some action. Eventhough, we can not stop the problem, but, we can decrease and postpone the nature's retaliate.
For example, in the second pragphy, we talking about the polar bear's habitat to shrink smaller and smaller, and their slauhter mutually. Maybe you might gratified to have been favored by luck that situation have not appear to the human. However, some of this kinds of situation will appear in couple years later, that is our human's habitat to shrink smaller and smaller. Through this year the anecdotal evidence of global warming causes the sea level rises, many small island will disappear. The island is the one of them. Many people lose their homeland because of the greedy for a short while of the human. To envisage that if the human no homeland, how to develop the economy. So, the option above the paragraph are talked. (about the necessary to investigate the climate change.)
How the sun as the source of energy for earth?
I would say,"No sun, No life". How does the sun effect the earth. Photosynthesis is very important to the life on earth. The plant catch the sun light and through using it to create the sugar molecules.
Sunlight +6CO2+6H2O------C6H12O6+6O2
The plant use sunlight to create the oxygen, which the human and animal can't live without it.
A part of ocean never have sun shine, and there must not have any life in it. The sun as the source of energy also help food chains develop. In natural, the sunlight help plane to grow up, and herbivore eat the plant to get the energy, and the carnivore animal eat the herbivore, the human eat the carnivore animal, thus it can be seen the energy from sunlight transfer to the plant, then go to the herbivore, and carnivore animal, in th end, transfer to the human .
Maybe you many wonder, the sun also shine to the moon. Why? The moon do not have living life like the earth. Nautural is very mystorions, i only can answer you is that we were lucky bease our earth has nice distance from the sun, so that it can warm us, give us energy but do not hurt us.
What is biosphere? Let us spread it in to biosphere
Bio, means biology connected with living things or human life, sphere respects a area of activity, influence or interest and a partivular section of society. Comboud bio and sphere then, we can make sense, is living things in an area.
Biosphere incude the atmosphere, lithosphere , and hydrosphere, so, in the meanwhile, through the definition of the biosphere, we can know there have life in the air, under the water, and on the rock .
Lithosphere, the dictionary determine it as the layer of rock that forms the outer part5 of the earth. The home to the humans, plants, many micro organ isms and animals is lithosphere lithosphere, from 100km below the earth until to the surface of earth, include oceans part, why the lithospheres temperatule suit for living things ,it mainly effects by the sun shine and by the molten materal in the mantle.
Hydrosphere, hydro have an abbreviation in period of table of chemistry, we commonly conect it with water, our earth is water polo planet almost 97 of water is salty, lide ocean water, the fresh water just only 30 ,with the pollution become more and more serious, the fresh water face a huge challenge, brt ,anyway, it need the humans awaken.
Atmosphere, the sphere above 500km of earth surface, it incude different kind of gases ,as a matter of course many people would think the oxygen is the most abundant gas in our atmosphere, because all kind of animal and human cant live without the oxygen ,the figure below shows the oxygen is the second most abundant gas, it is 20.95 in the atmosphere ,nitrogen is 78.08 ,the no 1 lf the air, the other gas is 0.97 , nitrogen is required to help plant growing up , and it does not support combustion, it provide a safety arrounding to all the living things oxygen, support combustion, but 20.95 is still a safely number, it also help the animal respiration. Anyway, the atmosphere also inculde. Atmospheric dust, which comtain non living particles, and living partides, like soot and pollen and micro organisms the layers of the atmosphere,
There are 4 layer of atmospheric gases form okm to 0 km to 10km above the earth surface is troposphere, the average temperature is 15 c. With increasing distance in troposphere, the temperature become lower and lower, until 60c. About 80 of atmospheric gases are in troposphere, it is the only layer concentration of oxygen support all the living organisns, with a temperature range , it also the only one, the most weather occurs is in troposphere, because most carbon dioxide and water vapourur occur in it so, the troposhere is the layer to be the most changeful, the dust from the natural events are suspend in troposphere.
Stratosphere is above the troposphere, from 10km to 50km above the earth surface, the temperature in the stratosphere is opposite to troposphere, ti begin with 60c. Bottom part, and increases with the distance higher and higher until 0c. It does not have life but except for kumps of cells, the scientists found before stratosphere also called the ozone layer, most ozone gas in stratosphere, it absorbs energy from the sun shine.
Mesosphere is above the stratosphere, form 50 to 80km, the temperature is form 0c decreases with the distance to 100c to the top.
Thermosphere is above mesosphere, form 80km to 300km above the earth, the temperature is increases from 100c to 1500c.
Air temperature and altitude lab.
Ahitude is the distance above the sea level.
The temperature in troposphere dechease with the altitude, and difference altitude region have differen tempenature, the higher altitude cooler than lower altitude.
How does the transfer of thermal energy heat by the hy6closphere water and the atmosphere air contribute to latitudes of net radiation deficit cooler and a variety of climte zones.
Wind is oreated in the difference temperature, by the atmosphere pressure through the global wind, the thermal energy transfers form the warmer latitudes to the cooler latitudes, it means, form equator area to poles area. Equator and near it between the latitudes 30 n and 30s, is prevail trade wind which drive the warm water, between latitudes 30 and 60n and s, is previail westerly winds, it bring the warm water to the poles area, the latitudes 60n and s. To the poles, is prevail the easterlies winds, it dive cooler water to the equator.
In the northern hemisphere, the winds is clockwise, and its opposite in southern rlemisphere, many coastal regions, current of warm water, the cold areas current of cold water
Cooler water is more dense than water water, more dense it also equal more heavier, so, the cooler water in air is aways under the water, so,the thermal energy also transfeerred vertically in the nutral. Before, we talking about the warm water or cooler water driven by the windy, the waters state is vapour, there are 3 states in the water, liquid solid and water vapour, the thermal energy released when water change from vapour to liquid or liquid to solid, wheres, absorbed from liquid change to vapour or solid to liquid.through reading the science 10 text book, i understant why our earth always keep average temperture, becaus of waters has relatively large specific heat capacity.