Correct the mistake in each indicated line. (1'×10=10') The following passage contains TEN errors with each indicated line. You should proof-read the passage, point out the errors and correct them in the following way: For a wrong word, underline it first and write down the correct one with a sign of “ →” . For a missing word, mark the position of the missing word with a “ ∧ ”sign between the neighbors and write the word you believe to be missing. For an unnecessary word, cross the unnecessary word with a slash “ / ” . Example: When art museum wants a new exhibit, _ 1_ 1. When ∧ art → an it never buys things in finished form and hangs on the wall _2_. 2. ne /v e r When a natural history museum wants an exhibition, it must _3_. 3. exhibition → exhibit often build it Minimizing the environmental damage that new roads cause is generally regarded a good thing. But to do it, it helps to understand just 1._______ how new roads cause the damage which they are accused. 2._______ Recently, a group of researchers led by Dr. Goonzalez conducted an experiment which shows what ecologists have long doubted, but 3._______ never have been able to prove: that immigration is good for health of animal populations. 4._______ A road destroys only a small part of the habitat it traverses, and thus annihilates just a few local populations of creatures. So the argument 5._______ that road-building itself is bad for biodiversity is not self-evident correct. Those who nevertheless hold this view usually points to a piece 6._______ of ecological theory called “meta-population dynamics”. This says that apparently separate local populations of animals are, in fact, 7._______ parts of much large populations connected via migration. According to this theory, when a local population flounders 8._______ —because an epidemic, for example—individuals from neighboring communities can fill the gaps. So the more such communities there are, 9._______ the better the chance of a given local population remains healthy. The implications of the theory for conservation are straightforward. Cut local populations into each other and each is more likely to disappear. And roads are good at doing just that. Testing the theory with 10.______ experimental roads, however, would be expensive.