The telephone because it allowed people to be connected over long distances
The car because we literally use it every day
The airplane because travel around the world has been sped up
It would be a class system. Hope i helped
An 8-year-old child who scored like an average 10-year-old on an intelligence test would have a mental age of 10 and <span>iq of 125
IQ = </span>mental age<span> ÷ Physical </span>age<span> × 100</span><span>
In this case,
Mental age= 10
Physical age= 8
So, the iq calculation is:
IQ = 10/8 x 100
IQ = 1.25 x 100
IQ = 125</span>
Answer:
Explanation:
It contains a different amount of neutrons in the nuclei than stable atoms.
