An ecosystem dominated by lichens, mosses, grasses, and woody plants. it is generally found at high latitudes. it is described as having a marshy surface where mosses, lichens, berries and low shrubs grow with mucky soil and permafrost underneath. what is this ?

The movement of tectonic plates in two different locations is shown below: two blocks labeled location a and location b are shown. at location a the top layer of the block shows two horizontal arrows pointing towards each other. small dunes are shown in the middle between the two arrows. the block labeled b has a vertical line in the middle. on the left of the line there is an arrow pointing down. on the right of the vertical line there is an arrow pointing up which statement is most likely true? subduction may occur in both locations. earthquakes may occur in both locations. subduction may occur in location a only and a volcanic eruption may occur in location b only. an earthquake may occur in location a only and a volcanic eruption may occur in location b only.

Describe characteristics of a good respitory surface

Up to what percentage of the world's flora consisted of cycads during the triassic period? 100% 75% 50% 20%