You are presented with the question "What does potassium do for plants?" and the following answer choices: 
- Helps them pollinate
 - Helps them grow
 - duplicate itself
 - hydrate their cells
 - Makes them taste better
 - hydrogen and oxygen
 - Decrease bodily water
 - Kills them

Now knowing that aplant requires nutrients to grow and potassium is an essential nutrient for plants and animals, choose the best answer.


 

  Helps them grow       