collect some of chalk, limestone, marble, eggshells and seashells and mix them with a dilute acid. pass the gas produced into a
1 answer:
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Answer:
The second option
Explanation:
Speed is defined at the rate at which distance changes with time. It is scalar quantity and it is expressed as shown below:
Speed =
At constant speed the rate of change of distance with time is the same. On the second graph, this is noticeable. Both distance and time change at the same rate.