Solvent because the water makes up majority of the solution.
The answer is: A.H2O2
I assume the reaction is 2 H2O2 ==> 2 H2O + O2
This reaction could be accelerated by catalase ezyme. The substrate would be hydrogen peroxide(H2O2) which is an reactive oxygen species(ROS). Hydrogen peroxide is dangerous because it could oxidize other subtance and need to broken down to water(H2O) and oxygen(O2) to prevent damage to the cell. Catalase is an important enzyme for this reaction and this enzme could be found in any organism that exposed to oxygen.
Some of these animals habitats overlap with areas that humans count on for their livelihoods.
Answer:
A system that uses the sun's energy without requiring mechanical devices (pumps or fans) to distribute the collected heat are called solar system while radiator system uses fuel to heat the water. in active solar heating system, the SUN's energy used to heat water.
