You are presented with the question "important food for waterfowl supply most of the food consumed by what?" and the following answer choices: 
- agriculture
 - it needs them
 - keeps the organism warm
 - people worldwide
 - our planet
 - monkeys in trees
 - tigers in the wild
 - wolves in nature

Now knowing that grasses supply most of the food consumed by people worldwide and grasses are also important food for waterfowl, choose the best answer.


 

    people worldwide     