In this task you will be given a claim and a perspective. You should determine whether that perspective supports or undermines the claim. If the perspective could possibly convince someone with different view, it is supporting, otherwise it is undermining.

claim: Governments of resource-rich nations should impose high taxes on mining and extraction.
 perspective: High taxes on mining and extraction would cause many adverse affects on the country and its citizens.
undermine

claim: social networking sites should be banned at the workplaces.
 perspective: Social media enables "sexting," which can lead to criminal charges and the unexpected proliferation of personal images.
support

claim: Junk Food Should Be Banned.
 perspective: Bans On Junk Food Have Been Successful

support