Describe the composition of the core of the earth. select one: the inner core is composed of liquid iron surrounded by a solid nickel-iron alloy out core. the inner core is composed of solid iron surrounded by a molten nickel-iron alloy outer core. both the inner and outer cores are composed of molten iron, with the core being a higher temperature. the inner and outer cores of the earth are both composed of a solid nickel-iron alloy, with the inner core having a higher density.

Why are carbon dioxide concentrations expected to increase? a carbon dioxide concentrations are expected to increase, because fossil fuel burning is expected to increase b. carbon dioxide concentrations are expected to increase, because of an increase in agriculture. c.carbon dioxide concentrations are expected to increase, because more land will have to be cleared for increasing populations and agricultural use. d. all of the above select the best answer from the choices provided mark this and return save and exit next submit submit