Answer:
The answer to your question is: There are more atoms in the human body.
Step-by-step explanation:
Data
Grains on earth = 7.5 x 10¹⁸
Atoms in human body = 7 x 10²⁷
Grains 7500000000000000000
Atoms 7000000000000000000000000000
There are more atoms in the human body.