Adrought can change the color of an environment from green to brown, and due to the drought, there is no water. Given these facts, what can change the color of an environment from green to brown among the following options:
- the ocean
 - a lack of water
 - rain
 - harmful substances
 - sleet
 - deforestation
 - Greenhouse gases
 - Greenhouse gasses


 

  a lack of water       