Answer:

Step-by-step explanation:



Shisiekkd. Wklwlwl kalwow wish is owl am dh Wii’s all wish wishfully usnan2839 7 hessian
Answer and workings in the attachment below.
Answer:
The answer to your question is: Salt
Step-by-step explanation:
Element: is a substance that cannot be converted into another substance.
Compound: is a substance that is formed by 2 or more elements.
Mixture: is a substance composed by 2 or more compounds.
Iron it is an element
Salt it is a compound
River sediment it is a mixture
Ocean water it is a mixture
I think is A or b go try it am not 100% sure