Volcanoes play an important role in determining climate change. when a volcano erupts it throws out large volumes of gas and ash into the atmosphere which can influence climatic patterns for years. a) nitrogen b) oxygen c) sulfur dioxide d) carbon dioxide

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.