What are the causes of
the Earth's climate
changes and people's
management of these
effect changes?

( give some questions as an answer)

An empty fuel tank can still contain and therefore can be even more dangerous than one full of liquid fuel.

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule

Analyze the reaction to determine whether the reaction is exothermic or endothermic. explain your reasoning.