&vsize=400&exid=1&exmo=1&exty=3&thre=1&trmo=0&trurl=http://62.232.76.134/Campus/Britcoun/Script/Script.cfm&shuf=1&spdrag=1&sppos=50&skelt=../obj/skelt01.swf&frameup=cnt_txt1.swf&framedown=tpl_multiplechoice.swf&panel=0&audiolv=70&audiofile=nul&autoplay=0&buffertime=5&tscr=0&audioscript=HTML text&subm=1&hurl=helpfile.swf&cnt_txt=Below are 6 questions about the text. For each one, select the best answer: a), b) or c). When you have finished, click "Submit" to check your answers.&i6_risposta3=stayed the same&i6_risposta2=decreased&i6_risposta1=increased&i6_nrisposte=3&i6_domanda=Over the last few thousand years, the land covered by rainforests has&i6_dvalue=0&i6_cvalue=2&i5_risposta3=the rainforests produce their own rain&i5_risposta2=rainforests are very rainy places&i5_risposta1=the humidity of the rainforests produces rainclouds&i5_nrisposte=3&i5_domanda=Rainforests make a difference to the worlds' water supply because&i5_dvalue=0&i5_cvalue=1&i4_risposta3=to give the forest animals more exercise&i4_risposta2=to protect the trees from disease and insects&i4_risposta1=to make rain fall on the ground of the forest&i4_nrisposte=3&i4_domanda=Rainforest tree leaves never touch the leaves of another tree&i4_dvalue=0&i4_cvalue=2&i3_risposta3=produce a small amount of oxygen and store a small amount of carbon dioxide&i3_risposta2=store a small amount of oxygen and produce a large amount of carbon dioxide&i3_risposta1=produce a large amount of oxygen and store a large amount of carbon dioxide&i3_nrisposte=3&i3_domanda=Rainforests are 'the lungs of the planet' because they&i3_dvalue=0&i3_cvalue=1&i2_risposta3=approximately half the worlds' species&i2_risposta2=less than half the worlds' species&i2_risposta1=more than half the worlds' species&i2_nrisposte=3&i2_domanda=Rainforests hold&i2_dvalue=0&i2_cvalue=3&i1_risposta3=in a small strip of land, mostly equatorial&i1_risposta2=in many countries all over the world&i1_risposta1=only in South America&i1_nrisposte=3&i1_domanda=Rainforests can be found&i1_dvalue=0&i1_cvalue=3&nitem=6&