words. The measures include monitoring marine debris, addressing the risk associated with entanglement of marine mammals in plastic packaging bands and the injury to seabirds caused by the discharge of hooks in offal, I want to know the word "offal" means something in the seabird or means debris . thank you to you all.

plan +to ? Other major changes include expanding the requirements for placards and garbage management plans to fixed and floating platforms. "plans to fixed and floating platforms" plan is a noun in this sentence ,but how to explain " to fixed and floating platforms"？Then what about putting them together?

What is the gray literature? What is the gray literature? Do you know?

What is prions (Pachyptila spp.).

I want to konw what is it,prions (Pachyptilaspp.).

it's an animal? or  virus?

And how big it is?

I can't find it in the dictionary.

I will be very happy  if you help me with  this question.

I am puzzled. Whether or not visual observations from ships and airplanes, observations using underwater vehicles, manned or not, acoustics and finally trawling will provide the necessary detail to characterise litter and eventually define sources is not always clear. And I want to know what is "not always clear."

求问句子结构及意思。I don't understand it. Litter enters the seas from both land-based sources, from ships and other installations at sea, from point and diffuse sources。 what does does this sentence mean in Chinese？And what is the structure of it？谁英文好能帮忙解释下么，谢谢。And thanks very much.

what are these "garbage" 's difference? garbage， rubbish，debris，waste，junk，trash，litter，refuse ,and is there anything else like these ? I am already dizzy...

What do you call the things inside a fruit?different fruits different names? I just swallowed something inside a jujube ,what do you call it?

People and Persons When should I use people or persons?