What is not a high level radioactive waste?

Very low level radioactive waste consists of materials used when working on radioactive stuff. For example gloves, wipes, old containers and laboratory equipment. It is materials which may have low levels of contamination, or which is very slightly radioactive. Levels or radioactive contamination may be detectable but you would probably have to eat a lot before you had any radioactive effect on your health.
Low level radioactive waste contains more radioactive contamination or consist of more active material I would include items such as tritium fuelled night sights and compasses, smoke detectors etc. as low level waste.
Intermediate level waste can be highly radioactive items such as gamma radiography sources, old nuclear reactor components, stuff which is highly radioactive but not producing heat.
Spent reactor fuel etc. is also highly radioactive, but also produces heat and so needs to be cooled. This is high level waste

Your answer will be b action plan.

Answer:

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

explanation:

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.