Answer:
During the Cold War, scientists led the "space race" competition.
Explanation:
It's the only option that follows the rules of English.
Explanation:
Exigence an event or circumstance that engenders rhetoric; the requirement is the one that starts the "loop" of the debate on rhetoric about a specific subject. Purpose: the desired results of (implicitly or explicitly) rhetorical speech defined by the rhetoric.
Nucleus is the cell structure contains informations needed for protein synthesis
