Catalyst is the substance which reduce the activation energy,and decrease the reaction time (that means increase the reaction rate), eventhough it increase the reaction rate it will not undergo any change,at the end of the reaction it will be recovered as usual.
This definition relate to the meaning of catalyst, why because it dissolve all the complication in the reaction and make the reaction quickly and smoothly.
"I finished my research paper two days early."
A good way to determine active vs passive is to ask who performed the action. Did the subject perform the action, or was the action performed "by" the subject?
The subject performs the action in this sentence:
I = [subject]
finished = [action]
my research paper = [thing on which the action was performed]
In the other examples, the subject has an action performed on it.
My research paper = [subject]
was finished/is being finished = [action]
two days early = [time frame information, not really important for the discussion here]
At this point, you have no indication as to who will finish the paper, do you? No. You assume that the paper will be completed "by me," but it could just as easily be completed "by my friend."
If you can add "by [person/thing]" to a sentence, it's passive voice. If you can't, it's not. Clearly, you would never say "I finished my research paper by me."
Answer:
10. Evaporation of ocean water and formation of sea ice both increase the salinity of the ocean. However these "salinity raising" factors are continually counterbalanced by processes that decrease salinity such as the continuous input of fresh water from rivers, precipitation of rain and snow, and melting of ice.
Explanation:
11. Features of the ocean floor include the continental shelf and slope, abyssal plain, trenches, seamounts, and the mid-ocean ridge. The ocean floor is rich in resources. Living things on the ocean floor are used for food or medicines. Nonliving resources include oil, gas, and minerals.
PLS BRAINLIEST
