Answer:
Explanation:
A catalyst is a substance that increases the rate of a chemical reaction without itself getting consumed in the reaction as it helps in decreasing the activation energy. Thus, rate of reaction also increases.
A positive catalyst helps in increasing the rate of a chemical reaction whereas a negative catalyst decreases the rate of a chemical reaction.
Whereas when we increase the temperature then collisions between the particles increases due to increase in kinetic energy. Hence, rate of reaction increases with increase in temperature.
Thus, we can conclude that out of the given options adding a positive catalyst will increase the rate of a chemical reaction.
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I think it's the last one or the third one.
This is a personal question for YOU. So, I suggest YOU complete it yourself. It's your own experience! Have a nice day.
It would say that this sentence presents two examples of personification.
By personification, we understand that "<span>the attribution of a personal nature or human characteristics to something non-human, or the representation of an abstract quality in human form"
In this quote Time is capitalized that is why it can be considered a personification of time, it is taken as a subject. And on the other hand, the bridge is related to the verb "sweep" which is applied to people.</span>