1. true
2. false
3. true
4. I'm pretty sure false
Answer:
Rain cloud prolly cus it's a natural shape that can shape up into a heart, Star, Circle or any irregular pattern/shape.
Chiaroscuro is Italian for<em> light and shadow</em>
Painters use this technique when they need to <u>create the illusion of light</u> on objects and people
I've attached a pic for example :D