The prefix of adequate is ad-.
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Answer: C. It highlights the critical tone of the essay
Explanation:
<span>In this scenario it means honest discussion. They are stating that the racial relations have been brought to light and in order to deal with them both groups should meet and discuss these issues with the knowledge and experience that are important from both sides of the table.</span>
The second paragraph relies from an expert opinion to support the organizations' point of view. It is because this paragraph shows the reason why the amount of ice in the Arctic is decreasing. Professor Peter Wadhams of Cambridge University is shown as an expert. Statistics is also shown as proof which is the IPCC estimate from 2007.