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ANSWER KEY

TEST YOUR KNOWLEDGE

Gamers Beware

1. [d] 97 percent of boys and 83 percent of girls

2. [b] children

3. [d] The gamer tries to move a chat to a private platform.

4. [d] The vast majority of cases are not reported.

5. [d] few gaming companies have created tools to detect abuse online

6. [d] online games should include more protections against predators

7. [b] Implementing these protections is more complicated than it first appears.

8. [b] "You can't seriously compete without talking."

   ANSWER KEY

   TEST YOUR KNOWLEDGE

   Drowning in Debt

1. [a] increased dramatically

2. [d] 69 percent

3. [d] $1.6 trillion

4. [d] It made public and community college free for middle- and low-income students.

5. [a] paying off student loans

6. [c] "It takes about 20 years on average for graduates to pay off a bachelor's degree."

7. [c] some of the solutions politicians have proposed

8. [a] anxious

   ANSWER KEY

   TEST YOUR KNOWLEDGE

   'Four Dead in Ohio'

1. [c] the West's determination to halt the spread of Communism

2. [b] end the Vietnam War

3. [a] not protesters

4. [a] lowered the voting age to 18

5. [c] moving away in different directions

6. [a] explain the history of the Vietnam War

7. [b] public opinion turned against the war

8. [d] a dialogue with the National Guardsmen

   ANSWER KEY

   GRAPH EXERCISE

   Raising Armies

1. [b] 1943

2. [b] 2.3 million

3. [c] 10 million

4. [b] 160,000

5. [d] 1973