Elements are pure substances that make up all matter. gold, aluminum, iron, and lead are some examples of these pure substances. what is the basic building block of all pure substances that make up matter in the world? a) atoms b) cells c) compounds d) metals

Explanation:

Atoms are the basic building blocks of all pure substances that make up matter in the world. Atoms can combine together to form molecules, which can also form objects. Atoms are made up of tiny types of particles (protons, neutrons, and electrons) . Protons have a positive electrical charge, electrons have a negative electrical charge, while neutrons are neutral (without any electrical charge).

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the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.