Question

when brazil tried to contact communities in the 1980s, large numbers of uncontacted peoples died from diseases. because they had never been exposed to the diseases before, their immune systems didn’t know how to fight the viruses. because of this, brazil no longer reaches out to these tribes. however, the tribes are still under threat. mining and logging often approaches their communities.

a. the author believes that mining companies pose the biggest threat to uncontacted peoples.

b. the author believes that logging companies caused illness to spread throughout one uncontacted tribe’s community.

c. the author believes that contact from the brazilian government is just one of several ways that uncontacted tribes may experience unwanted contact from the outside world.

d. the author believes that modern medicine may prevent viruses from spreading to uncontacted peoples.

Explanation:

To solve this, we analyze each option:

• Option a: The passage says "mining and logging often approaches their communities" but doesn't state mining is the "biggest" threat. Eliminate a.
• Option b: The passage attributes deaths to diseases from contact, not logging causing illness. Eliminate b.
• Option c: The passage mentions Brazil's contact attempt, and "mining and logging" as other threats, implying government contact is one of multiple contact sources. This matches.
• Option d: The passage focuses on past deaths from diseases due to contact, not modern medicine's role. Eliminate d.

Answer:

c. The author believes that contact from the Brazilian government is just one of several ways that uncontacted tribes may experience unwanted contact from the outside world.