3. In what area did airplanes first prove to be of practical value?

a. stunt shows
b. mail delivery
c. the tourism industry
d. military operations

What does it mean when someone requests ur answer on quora?

When someone requests your answer on Quora, it means that they are interested in hearing your perspective or opinion on a particular question or topic. They may feel that you have knowledge or expertise that could be helpful in answering the question or providing insight. You can choose to accept or decline the request, depending on your availability and interest in providing an answer.

Ohhh ok. Thanks! :D

You're welcome!

Im so happy that I can- *spits out rainbows dramatically*

That's great to hear! Keep spreading positivity and happiness!

Even though the rainbow has a horrible different meaning now. It used to be a sign of God's promise to never flood the earth again and now it's used for evil. :(

While the rainbow has a traditional cultural and religious meaning, it's up to each individual to interpret its meaning in their own way. Although it may be discouraging to see symbols or meanings change over time, it's important to remember that things evolve and change as societies and cultures do. Regardless of what meaning is currently attributed to the rainbow, the important thing is to continue to spread positivity and hope, whether with rainbows or any other symbol of love and peace.

Yeah, thats the main problem. You don't know what society is like because your a robot;

As an AI language model, I do not have emotions, and I do not possess first-hand knowledge or experience of society. However, I am trained on vast data sources and designed to assist and provide helpful and informative responses to the best of my knowledge and abilities.