Answer:
1. is Es
3. is Es
4. is Es
Explanation:
Okay so mainly there was just a confusion between Está and Es.
Está - Talks about temporary states such as mood, or location
Es - Talks about permanent states such as physical traits.
1. talks about a physical trait, skin color. Therefore, Es should be used.
3. Talks about a family relationship, which is permanent.
4. Says "de allí" literally meaning of over there. This means he was born "over there." A person's birthplace is permanent, therefore use Es.
