- A grassland receives moderate rainfall
- A desert environment receives low rainfall
- Hence, a desert receives low rainfall and a grassland receives moderate rainfall

- A desert receives low rainfall and a grassland receives moderate rainfall
- Rainfall is the amount of rain an area receives
- Therefore, a desert receives a low amount of rain and a grassland receives a moderate amount of rain

- A desert receives a low amount of rain and a grassland receives a moderate amount of rain
- Amount is a kind of property with ordered values of low / moderate / high
- Hence, a grassland receives more rain than a desert

So, a grassland receives more rain than a desert
Which comparison of ecosystems is true?
- Rainfall is the amount of rain an area receives 
- A grassland receives moderate rainfall 
- A desert environment receives low rainfall 
- Amount is a kind of property with ordered values of low / moderate / high