Answer:
Heat is produced.
Explanation:
Law of conversation of energy and mass these can't be created or destroyed, but can be converted to another form. The fuel/chemical energy is being converted into heat.
Answer: gas in the air, pollution
Explanation:
Answer:
This means that the means height (which is all the sum of the height of all the students divided by their number ) is 205 cm. Standard deviation means how the height of the students deviates from this mean since students do vary in height and are not all the same height of 205 cm. Therefore, in this case, the amount of standard dispersion of the students' height is by 17 cm on either lower or higher side of the mean.