Once upon a time, the rule for early release from City Schools due to excessive heat was as follows: If the Official Temperature (at BWI airport) is 90 degrees Fahrenheit by 10:00 AM, the school district could release
students early
Many students, teachers, and parents thought this was an unfair standard. Why might this not be the best way to
determine if it was too hot' for students in Baltimore city schools.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

the electron configuration that you gave me has 16 electrons ergo it has 16 protons ergo it is the element sulfur.