People and animals living in low-lying areas of lake nyos in cameroon, africa, were killed after carbon dioxide escaped from the lake and moved across the land. this is an example of a. how human activities can affect humans and the environment b. the fatal consequences of industrialization c. how natural processes can introduce harmful materials into the environment d. the dangerous effect of livestock competition

Monitor and apply fix up strategies

Did the vinegar diffuse all the way to the center of any of the cubes? if so, which ones? what does this tell you about surface area-to-volume ratio and the diffusion rate?

Even though the ostrich is a flightless bird, ostriches still possess wings that stretch approximately two meters across when fully extended. scientists speculate that when dinosaurs became extinct, some of the birds that lived during that time became land dwellers since they were able to consume the food that the dinosaurs once ate. over time, these species grew larger and heavier. eventually, the ostrich species became too big to fly. the wings found on ostriches are known as a. analogous structures. b. homologous structures. c. vestigial structures. d. symmetrical structures.