Read your information... Think about what you should agree... with create a planning sheet.. min of 5 paragraphs... DONT FORGET to add a counter claim at the end and swing the topic back to you. counter claims are not long either.
I uploaded the answer to a file hosting. Here's link:
tinyurl.com/wpazsebu
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<span> They are formed over many years when windblown </span>sand<span> is trapped by beach grass or other stationary objects. ... Without vegetation, wind and waves regularly change the form and location of </span>dunes<span>.</span>
I think the answer is B. Sorry if it is wrong I tried my best and i'm new to this :)