Answer:
Light bulbs and electricity
Explanation:
They lost their jobs due to the fact that people were upgrading to light bulbs.
Troublesome friends are often friends who can cause troubles for different reasons. Friends who get drunk and start breaking the law are one example of this that is quite common. Another is friends who break the law in general, pushing you in a moral and ethical dilemma on whether you should tell on them to the law enforcment.
Answer:
Martin Luther King Jr. gave his famous "I Have a Dream" speech during the March on Washington
Answer: Lecture, Discussion, and Socratic Dialogue.
Explanation: Source:Go/oogle
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