Nachusa Grasslands, spring 2016|284x284px Setaria pumila, a species of Poaceae (the dominant plant family in grasslands) Grasslands are areas where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. They cover 31-43\% of the Earth's land area. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands.  Grasslands cover around 3.5 billion hectares globally, representing 26-40 percent of Earth's total terrestrial area.
Nachusa Grasslands, spring 2016|284x284px Setaria pumila, a species of Poaceae (the dominant plant family in grasslands) Grasslands are areas where the vegetation is dominated by grasses (Poaceae). However, sedge (Cyperaceae) and rush (Juncaceae) can also be found along with variable proportions of legumes, like clover, and other herbs. Grasslands occur naturally on all continents except Antarctica and are found in most ecoregions of the Earth. Furthermore, grasslands are one of the largest biomes on earth and dominate the landscape worldwide. There are different types of grasslands: natural grasslands, semi-natural grasslands, and agricultural grasslands. They cover 31–43\% of the Earth's land area. Grasslands cover around 3.5 billion hectares globally, representing 26–40 percent of Earth's total terrestrial area.
D
They cover 31-43\% of the Earth's land area.
A
They cover 31–43\% of the Earth's land area.
R
26-40
26–40