It is an area of land that is either covered by water or saturated with water
wetland
The continuous body of salt water that covers most of the Earth's surface.
Sea
It is land covered with dense forest and tangled vegetation, usually in tropical climates
jungle
It is a piece of land surrounded by water.
island
It is situated beneath the surface of the ground.
underground
a large open area of country covered with grass, especially one used for grazing
grassland
It is a structure or place made or chosen by a bird for laying eggs and sheltering its young
nest
It is a luxuriant, dense forest rich in biodiversity, found typically in tropical areas with consistently heavy rainfall.
rainforest
