Well first off you can learn about Global Warming and how to help stop it so you can make a difference in the world! You could also learn about what types of animals that you can save or that you want to help or maybe even what to do about all sorts of stuff that you want to learn about.
I would say the ash and gas coming from it you can get really sick if you inhale to much if it
<span> PNEUMONOULTRAMICROSCOPICSILICOVOLCANOKONIOSIS</span><span> - lung disease from breathing to much volcanic dust
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These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air). Each of these four spheres can be further divided into sub-spheres
Answer: your answer for number 1 is decade millennium or century
Your answer for number 2 is a d or b .
Hope this helps.
Explanation: