This is the amount of spaces between the grains and particles that make up soil

Enzymes are proteins that speed up reactions by providing an additional energy source supplying additional molecules for the reaction removing inhibitors that slow down reactions lowering the amount of energy required

In the diagram below, the northern hemisphere would be in what season at position a a.fall b. winter c.summer d.spring

Fill in the blank with the correct sphere label. a: ⇒ geosphere b: ⇒ biosphere c: ⇒ hydrosphere