True and false..can you help me?

Question

1. Ferromagnetism refers to the natural magnetic abilites of iron.

2. A piece of iron can be made into a permanent magnet by stroking it with a strong magnet.

3. An electromagnet can be made stronger by increasing the number of coils of wire.

Answer 1

1.  90% sure it is T

2 100% sure T

3 100% sure T