authorization - the power or right to give orders or make decisions; he has the authority to issue warrants; deputies are given authorization to make arrests; a place of potency in the state. authority, potency, authorisation, say-so, dominance.
A savanna is a rolling grassland scattered with shrubs and isolated trees, which can be found between a tropical rainforest and desert biome. Not enough rain falls on a savanna to support forests.
Grassland Habitats. Grasslands are habitats that are dominated by grasses and have few large trees or shrubs. There are two types of grasslands, tropical grasslands (also known as savannas) and temperate grasslands. Grasslands experience dry and rainy seasons and are susceptable to seasonal fires. 1  New Species Discovered in Brazil's Cerrado Savanna. 2  Grassland Birds Threatened by Pesticides.