I think the answer is D , I think....
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.
If the coordinates of point A are (x, y ) the coordinates of point A´ after rotation will be (-y, x)
Example: A ( 2,3 ) and A´( -3, 2 )
Weather. This includes factors like temperature, humidity, wind speed, etc.
