Before the quarry was dug, the land contained more vegetation. What impact has this change most likely had on the local ecosystem?

Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!

Based on the equation and the information in the table, what is the enthalpy of the reaction?

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.