Which of these tasks would a hydrologist be most likely to perform? A. Determining the species of a recently collected specimen

B. Estimating the age of recently discovered fossils

C. Estimating the amount of groundwater in an aquifer

D. Determining the best method to extract underground oil

The earth consists of a variety of different organisms. despite their diversity, however, some similarities on the structural and metabolic levels may be seen. these similarities can be attributed to a. similarities among organisms in their proteins and nucleic acids. b. the ability of organisms to readily adapt to sudden environmental changes. c. similarities in organisms' habitats and niches. d. the ability of all organisms to interbreed and produce new species.

Which description provides the best objective summary of the article in the passage?

If animal agriculture was eliminated, how much grain would become available for human consumption?