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It's not just temperatures and other features of climate that affect crop growth.Soil also plays a bigrole."If you change the climate,you may also change the properties()of the soil,"notes LennyWinkel,an environmental geochemist.Wet,rainy areas have a lot of organic matter-largely carbon-in the soil.That's because thesewet places often have a lot of plants.When they drop leaves or die,their tissues break down in the wetenvironment.This adds compost ()-nutrients available to the soil.However,dry places havefewer plants.And as plants there die,it takes longer for them to turn into compost.If climate change leads some areas to become drier,she says"you could also lose some organicmatter in the soilThe nutrients available to feed the next season's crops would descend as a result.Winkel studies the presence in the soil of trace elements,such as selenium().Such elements showup in the environment in only tiny amounts.As an important micronutrient,selenium is something thatpeople need in tiny quantities.Not much is known about where selenium occurs naturally.So Winkeldecided to try to map known amounts.From this she attempted to predict levels elsewhere in the world.Then her team looked to find the link between known concentrations and environmental factors."Wefound out that climate factors were really important,"she says.That's because one way selenium getsinto the soil is through the breakdown of organic matter.With this information,Winkel realized she could now predict how soil levels of selenium wouldchange in a warming world.Using computer models of climate,she was able to add likely changes to hermap that would reflect a warming environment.And,she now reports,"We saw that the change wouldbe a loss of selenium in the soil."28.Why are rainy areas more suitable for agriculture?A.They have less carbon in the soil.B.They demand multiple organic matter.C.They can get more nutrients from nature.D.They have fewer plants to compete for nutrients.29.What does the underlined word"descend"in paragraph 3 mean?A.Suffer.B.Change.C.Decrease.D.Disappear.30.Which of the following is the principle that supports Winkel's study?A.Crops need compost to grow well.B.There are nutrients available in nature.C.Selenium can get into the soil naturally.D.Organic matter can break down automatically.31.What did Winkel find about selenium through her study?A.It only exists in organic matter.B.It exists in nature in huge amounts.C.Humans don't really need it to stay healthy.D.Warm temperatures reduce its amount in soil.DFariz Rustam Munaf,better known as Fariz RM,was a household name in his native Indonesiaduring the198Os.Back then,,both teenagers and adults listened or danced to his jazfusion(融合爵士乐).Today,his music has been re-released for a new generation of listeners.Around the world,artists such as Fariz RM are enjoying a resurgence()of popularity thanksto the boom in reissues.Record labels and producers are increasingly devoting significant resources tore-releasing tunes from earlier decades on vinyl(黑胶唱片)，CD or cassette,in the hope of turning theminto collectors'items.While most of reissues tend to be classic albums,such as the Beatles'Abbey Road,a small butgrowing selection is devoted to little-known cuts from the developing world.Reissues aren't a newphenomenon,but there's been an undeniable increase in recent years,amid the strong demand for vinyl.Last year,for the 14th continuous year,album sales on vinyl hit new highs in the US.It's a similar storyin the UK,where vinyl LP sales have increased for 12 continuous years.As a result,prices of limited-edition reissues have shot up.页·共4页