Practice Test 9

She explains that “Reef tourism generates $36 billion annually” and “reefs save $4 billion yearly in storm protection” directly support Martinez’s point that reefs are economically valuable.

She uses the “25% of marine species” fact to support economic value, because more species always means more tourists, even though the author does not mention tourism there.

She says all of Martinez’s evidence supports every reason equally, because any reef fact can prove ecology, economics, and threats at the same time without matching evidence to claims.

She identifies “Half of coral reefs have died since 1990” as economic evidence, because losing reefs will cost money later, so it supports the author’s money-related claim.