Where is most life on Earth?

A poorly-worded, vague question. What does "most life" even mean? Biomass, numbers of individuals, number of species, most birds? For example, there are more described species in rainforest than in the oceans.

we do our best to kill as many sea creatures though ! Plastic and pollution as well as over fishing.

YSL, both answers could've been right since scientists do discover new species all the time in the rain forest of the Amazon

YSL, true but the one way that I took the question was that the oceans has only been partially explored we don't really know what's down there so I took a guess and guessed right : )

Obviously because water is the most part of the world

Humans mostly use only the tops of oceans.