I would think either Feet or Yards. But since Feet are more colloquially used, I'd pick Feet.
C. the image is a reflection of the preimage across the y-axis
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.
Answer:
d
Explanation: My reasoning is alphabets are shared amongst all speakers of a language.