How do human actions negatively impact ocean ecosystems? a. burning of fossil fuels increases the acidity of the oceans. b. increased tourism and daysailers disrupt the ocean environment. c. the ocean ecosystems are not impacted by human action. d. reducing carbon dioxide emissions threatens ecosystems and food supplies.

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics? he proposed that plates carry parts of the seafloor. he theorized that pieces of earth move for a limited time. he suggested that the asthenosphere is broken into segments. he observed seafloor cracks similar to existing cracks in the continents.

In the following diagram, four different index fossils are labeled: which of the labeled fossils comes from the oldest organism? a b c d

Identify, in detail, three environmental effects of agriculture and explain how the actions of farmers cause them. what is the relationship between poverty and obesity in america and why? what are genetically modified organisms? list two pros and two cons for using genetically modified organisms. y'all this is due !