Hi Logan, thank you so much for doing and submitting your homework.

1.I am healthy.
CORRECT!

2.My dad is healthier.
Correct: My Dad is healthier than my uncle.
>> If we use comparative degree of an adjective we compare two things and we usually use " than ".

3.The water bottle is in the bottom of dask.
Correct:  A bottle of water is in the bottom of a desk.
>> Be careful with your spelling.