Question

1. choose the best answer.

____ invented a stoplight that used a yellow caution light and a gas mask that saved the lives of thirty - two men trapped underground.
lewis howard latimer
garrett morgan
elijah mccoy
granville woods

1. choose the best answer.

the ____ supreme court ruling that blacks were not citizens meant that black inventors could not file for patents.
dred scott v. sandford
gibbons v. ogden
miranda v. arizona
mcculloch v. maryland

Explanation:

• For question 8, Garrett Morgan invented a stop - light with a yellow caution light and a gas mask that saved trapped miners.
• For question 9, the Dred Scott v. Sandford Supreme Court ruling declared Blacks were not citizens, affecting their ability to file for patents.

Answer:

1. B. Garrett Morgan
2. A. Dred Scott v. Sandford