Answer:
C
Explanation:
Plants and Animals breathe in carbon and convert the carbon molecules into oxygen!
The excretory system allows animals to remove metabolic waste their bodies. Many of these substances are potentially toxic. in Mammals nitrogenous toxins like urea are expelled through liquid urine while in reptiles and birds the nitrogenous compounds are expelled as a solid. This allows birds and reptiles to use less water in the processes of metabolism.
31c-11c=20c So, therefore, the range is 20c.
Hope this helps! :D
Storm 1. The air parcel at the surface was warmer and had more energy, so when it moved higher, it lost more energy.