Anser: B
Explanation: back in the day people where dependent on water sources that us where they got some of there food and it is also what they used to water crops and drink hopes this helps
Barak Obama is the 44th president of the united states
<span>The overall system of taxation in the United States is progressive.</span>
Answer:
Uncertain - 99%.
Explanation:
Predicting or forecasting the future could be measured with a sense of certainty or uncertainty. If a person sees dark clouds on the sky, they would be more certain than uncertain that it's an omen of rain. If you are collecting relevant data and then apply it to a forecast having less than 1% of certainty of reducing the degree of risk, conditions are uncertain. And, if measured from 1% to 100%, substracting that 1% of certainty leaves a 99& of uncertainty.
