5. Examine the obelisks above. First, describe the evidence that chemical weathering occurred under What? Then, infer why the obelisk in New York City has weathered more rapidly than the obelisk in Egypt under Why?

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive

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.

Which material burns faster? metal aluminum