What does the majority of an atom's mass exist? a. in the electron cloud b. in the space between c. in neutrons d. in the nucleus

What is one way that the author makes a distinction between the first transcontinental railroad and the first transcontinental passenger flights in 1936

What effects does roosevelt hope to have on americans with his apeal to emotion

Which statement contains an opinion? the ants serve to protect the acacia from other plants and herbivores. the acacia depends on pollinators for the exchange of genetic material. the acacia has no chemical defenses to discourage herbivores. the ants provide the acacia with the best protection from other plants and herbivores.