Choice A is the correct choice, The graduation rate in a city and the rate of unemployment in that same city would not have a positive correlation.
Some ways in which communicable diseases spread are by: physical contact with an infected person, such as through touch (staphylococcus), sexual intercourse (gonorrhea, HIV), fecal/oral transmission (hepatitis A), or droplets (influenza, TB) travel through the air, such as tuberculosis or measles.
Answer:
Check the areas that need excessive maintenance
Explanation:
a windmill collects energy from the wind