Answer:
Biomes are large regions of the earth that have specific biotic (living) and abiotic (nonliving) features. These features are based on factors such as their location, geography, and proximity to mountains and water.
Step-by-step explanation:
There are five major biomes:
Aquatic: Aquatic biomes are those that are in water, such as oceans, lakes, and rivers. Water is the major abiotic factor that defines an aquatic biome. Other abiotic factors include temperature, pressure, pH, and salinity.
Desert: The major abiotic factor that classifies a desert biome is rainfall, which is relatively scarce. Deserts receive less than 10 inches of precipitation per year. Other abiotic factors are temperature, sunlight, and wind.
Tundra: A tundra is classified by its lack of rainfall and its very cold temperatures. Because of these specific abiotic features, tundras have little vegetation.
Forest: A forest is classified by rainfall, which is more than that of a desert or tundra. Forests receive between 30 inches of precipitation (temperate forest) and nearly 400 inches of rain (rainforest). Because of the generous rainfall, forests can support many living species.
Grassland: Grasslands are classified as having moderate temperatures and plenty of sunlight, as well as average amounts of precipitation. Grasslands receive between 10 and 40 inches of rain per year.