Samples of the air we breathe that were taken from different parts of the world have all been found to contain 78% nitrogen

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.

What information does a complete ionic equation give that the balanced equation doesn’t show?

Describe at least two advantages and two disadvantages of using hydropower as a source of energy.