answer:The civil rights movement was a social and political movement in the United States that sought to end racial discrimination and segregation against black Americans. It lasted from the 1950s to the 1970s and included numerous protests, boycotts, and legal challenges to discriminatory laws and practices. It was a major force in the passage of the Civil Rights Act of 1964 and the Voting Rights Act of 1965, which outlawed segregation and discrimination in public spaces and ensured equal voting rights for all American citizens, regardless of race. The movement was led by influential figures such as Martin Luther King Jr., Rosa Parks, and Malcolm X, and inspired similar movements around the world. The legacy of the civil rights movement continues to impact American society today.

answer:Here's a simple function in Python that calculates the sum of two numbers: ```python def sum_numbers(num1, num2): return num1 + num2 ``` You can call this function and pass in two numbers as arguments to get their sum. For example: ```python print(sum_numbers(3, 4)) # Output: 7 ```

answer:Yes, the two sentences have the same meaning. They both convey that she gave him a present and he received it from her.

answer:Sound is produced by a vibration or disturbance that causes molecules in a medium (such as air) to vibrate, creating sound waves. These waves travel through the medium in all directions, until they reach a listener's ear. The ear then converts these vibrations into electrical signals that are sent to the brain, where they are processed and interpreted as sound.