In the pacific ocean, compounds called ferromanganese nodules form around volcanic fragments. these nodules are rich in iron, manganese, copper, nickel, and cobalt. what information would you need in order to evaluate if an attempt should be made to use these as a resource?

| the cost of recovering the materials
|| the environmental impact of recovering the materials
||| the value of the minerals

i, ii, and iii
i and ii only
i and iii only
ii and iii only

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.

The mammal pictured below is a silvery mole rat. which statement is an inference based on the picture? the animal is ugly. the animal has hairless feet with sharp claws. the animal has prominent upper and lower incisor teeth. the animal likely has poor vision since its eyes are so small.

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