Which ecosystem service provides services that give us nature to enjoy and to relax in?

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

2h2o2--> 2h2o + o2

this reaction is of the spontaneous decomposition of hydrogen peroxide down into water and oxygen.

add 2 molecules of hydrogen peroxide and 2 molecules of water. since oxygen is naturally diatomic, the total number of atoms of each element is now the same on both sides of the equation so it is balanced.

this may not be entirely correct but let me know.

im not exactly sure but i think its b!