Final answer:
Qualities existing in the external world that can be objectively observed and measured include physical quantities such as time, mass, weight, force, and electric charge. Metaphysical considerations also discuss the nature of reality, including the existence of God as an extra-mental reality. Scientific fields like geochemistry and astronomy study the natural universe and are predicated on the objectivity of these qualities.
Step-by-step explanation:
The question seems to be asking about qualities or characteristics of the external world that are objective and can be observed and measured by human beings. Characteristics of the physical universe encompass a wide array of measurable quantities. Examples include time, mass, weight, force, and electric charge.
Other fundamental concepts often explored in metaphysics, which discuss the nature of reality itself, include being, space, time, causation, and even the existence of God as an objective external reality versus a concept held in the mind. Discussions around God's existence often involve arguments suggesting that God is an extra-mental reality and not just a concept within the mind.
Fields such as geochemistry and astronomy involve the study of the natural universe and operate under the presumption that the external world has objective reality, which can be explored and understood through scientific means. These fields rely on qualities that exist in the external world which can be consistently and objectively measured.