After reaching North America, humans migrated to South America.
Answer: 10%
Explanation:
Given: Previous Hourly pay= $7.00
Current Hourly pay = $7.70
Increase in hourly pay = Current Hourly pay - Previous Hourly pay
= $7.70- $7.00
= $0.70
Now, the percent increase in her hourly rate of pay will be :

Hence, the percent increase in her hourly rate of pay = 10%
Answer:
Explanation:
It helps in assessing the level of pollution in relation to the air quality standards. Standards are a measure to set the target for pollution reduction and achieve clean air.