Which of these statements best explains why the atmosphere of today was partly due O the interactions of spheres in the past? • Bacteria used nutrients in the soil for volcanic eruptions.
Chemicals released from water formed the atmosphere.
• The molten Earth released hydrogen and helium into the atmosphere
The increase in fertility of soil around the volcano helped produce rain

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.