The earth has many different climates
Weather is a local area's short-term temperature, precipitation, humidity, wind speed, cloud cover, and other physical conditions of the lower atmosphere over hours or days. Supplement 10 on pp.S43-S47 introduces you to weather basics.
天氣是一個地區短期的溫度.降雨量.濕氣.風速.雲層和其他物理狀態在幾個小時或幾天的低氣層內
Climate is an area's general pattern of atmospheric or weather conditions over long periods of time. As American writer and humorist Mark Twain once said,"Climate is what we expect, weather is what we get."
氣候是大氣或天氣長時間的狀態在一個地區一般的樣式，美國作家和幽默作家馬克吐溫曾說:氣候是我們所期望的；而天氣是我得到的。
Average temperature and average precipitation are the two main factors determining climate, along with the closely related factors of latitude(distance from the equator )and elevation (distance above sea level ). Solar radiation, the earth's rotation, global patterns of air and water movement, gases in the atmosphere, and the earth's surface features affect average temperature and precipitation and thus determine the climate of an area.
平均溫度和平均降雨量是兩個決定氣候的主要因素，與緯度.海拔有密切相關的因素。太陽輻射.地球自轉.空氣.水的流轉.大氣中的氣體和地球表面的特點影響平均溫度和平均降雨量因而決定一個地區的氣候。
2008/12/06
第11週 4-1 p.64
Biological evolution is the scientific explanation of how the earth's life changes over time
How did we end up with an amazing array of 4-100 million species? The scientific answer involves biological evolution: the description of how the earth's life changes over time through changes in the genes of populations.
According to the theory of evolution, all species descended from earlier, ancestral species. In other words, life comes from life. This scientific theory explains how life has changed over the past 3.7 billion years and why life is so diverse today. If we compress the earth's 4.7 billion years of geological and biological history into a 24-hour day, the human speies arrived only about 0.1 of a second before midnight. In this eye blink of the earth's history, we have dominated much of the planet as our ecological footprints have grown.
我們怎麼有4百萬到1億這麼大量驚人的物種?科學上說是生物演化:也就是描述地球上隨著時間的變化,而基因也在演化
根據演化的理論，所有物種都是從早期的.祖先的種類，一代傳一代的，換句話說都來自於生命。這科學理論解釋生命如何改變在過去37億年和為什麼至今有所不同的。假如，我們將47一年的地質和生物的歷史壓縮在24小時裡，人類只占了0.1秒，相當於地球歷史抸眼的時間，而我們支配大部分的星球，當我們生態足跡在成長。
How did we end up with an amazing array of 4-100 million species? The scientific answer involves biological evolution: the description of how the earth's life changes over time through changes in the genes of populations.
According to the theory of evolution, all species descended from earlier, ancestral species. In other words, life comes from life. This scientific theory explains how life has changed over the past 3.7 billion years and why life is so diverse today. If we compress the earth's 4.7 billion years of geological and biological history into a 24-hour day, the human speies arrived only about 0.1 of a second before midnight. In this eye blink of the earth's history, we have dominated much of the planet as our ecological footprints have grown.
我們怎麼有4百萬到1億這麼大量驚人的物種?科學上說是生物演化:也就是描述地球上隨著時間的變化,而基因也在演化
根據演化的理論，所有物種都是從早期的.祖先的種類，一代傳一代的，換句話說都來自於生命。這科學理論解釋生命如何改變在過去37億年和為什麼至今有所不同的。假如，我們將47一年的地質和生物的歷史壓縮在24小時裡，人類只占了0.1秒，相當於地球歷史抸眼的時間，而我們支配大部分的星球，當我們生態足跡在成長。
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