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

1. what are some of the challenges in determining the time of death using insects? type your response here in paragraph form (at least 5-7 sentences):

What was darwins theory of common decent

Which statement describes characteristics of planarians? a they live in oceans, are parasites, and reproduce only sexually. b they live in fresh water, are parasites, and reproduce only asexually. c they live in oceans, are free living, and reproduce sexually and asexually. d they live in fresh water, are free living, and reproduce sexually and asexually.