Is it possible in Unity to create: audio, cartoon, 3d object?

Question

Programming

I'm just starting to learn C# and Unity.
Now I am compiling a list of additional programs to study.
As I understand it, you need to know Photoshop anyway, but...
1. Is it possible to create sounds for the game directly in Unity?
2. Is it possible to mount a game trailer in Unity?
3. Is it possible to create 3d objects or do I need to learn an additional editor like 3ds max?

Answer 1

1. It seems to be not, usually sounds are recorded in third-party programs, where you can adjust the quality more professionally, and then they are imported into the unit.
2. https://vk.com/videos-21398398?z=video-21398398_45... this seems to be done directly in the unit. There are links to read more.
3. Yes, you can, but complex objects (with detailing, etc.) are easier to do in third-party specialized programs and import them into a unit.