3. Some challenges to photographing children are that a large percentage of kids are very antsy and are hard to keep still and pose. You can reduce these problems by maybe playing some relaxing music or promise them a reward afterwards.
4. Challenges for photographing groups are that, large amounts of people are hard to cooperate with at once. You can reduce this by working with a small group of people at a time, telling them how you want them to act, pose, etc. until you talked to the entire group.
5. Three tips for photographing children are: play some music, promise them a reward for cooperating, or consult them (reassure them it will be fun)
I am not sure if this is what you're asking for, but I'll give it a shot!
Graffiti is considered a subject matter, because it vandalized private property, and causes employees or other people to clean up after someone else's mess.
Answer:
It is called a dotted half note.
