Answer: Grassland is the biome which is characterized by it's lack of trees, warm temperatures, and it's moderate rainfall.
Grasslands are generally open and continuous, flat areas of grass. They are often found between temperate forests at high latitudes and deserts at subtropic region. Grasslands lack trees, due to poor infilteration of soil, too deep water table or water table is too high, very thin layer of soil over hard rock, soil is acidic in nature, poor in macronutrients and low presence of organic matter. The climate in grasslands varies, but natural grasslands are generally hot and dry. The amount of rainfall received by grasslands depends about the level where they are situated. The amount of rainfall received by grasslands is lower then tropical forests and higher than deserts. Therefore, grasslands receives moderate rainfall.