Which types of boundaries produce trenches?

answer:

in particular, ocean trenches are a feature of convergent plate boundaries, where two or more tectonic plates meet. at many convergent plate boundaries, dense lithosphere melts or slides beneath less-dense lithosphere in a process called subduction, creating a trench

explanation:

the bald eagle got 50 because everything gets 10% of what they consume and since 50 is ten % of 500 hundred that means the   grasshopper had to have consumed a plant with 5,000 calories of energy

its 42

i say its d?