Which statements are true? Select all that apply
1. Dogs are mammals.
2. The Earth is flat.
3. Water always boils at 100 degrees Celsius.
4. The capital of the United States is Washington D.C.
5. Oxygen is necessary for human survival.
The true statements are:
1. Dogs are mammals.
4. The capital of the United States is Washington D.C.
5. Oxygen is necessary for human survival.