Which feature of the ocean floor includes its deepest parts? trench estuary mid-ocean ridge continental slope

the deepest part of the ocean floor represents ocean trenches.

trench  

Oceanic trenches are deepest parts of the ocean.These are the depressions in the ocean. These are formed by the phenomena of plate tectonics, when old ocean crust from one tectonic plate is pushed below the another plate. This results in formation of underwater mountains, generation of earthquakes and volcanoes on the sea and on land.

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.