Answer:
Temperature, humidity, elevation, precipitation and climatic conditions.
Step-by-step explanation:
Temperature, humidity, elevation, precipitation and climatic conditions are the major factors which determines the type of vegetation within the grasslands and desert. Every vegetation requires particular temperature, humidity and amount of rainfall for suitable growth and survival in that environment. We know that there is a great difference of environment between grassland and desert so that's why different types of vegetation is present in each location.