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.
Typical tropical savanna in Northern Australia demonstrating the high tree density and regular spacing characteristic of many savannas. A savanna or savannah is a grassland ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close. savanna or savannah is a grassland ecosystem characterised by the trees being sufficiently widely spaced so that the canopy does not close.