c. Mesozoic Era
b. Paleozoic Era
d. Cretaceous Period
Mammals first appeared during the Mesozoic Era. Therefore, option c is correct.
The Mesozoic Era, also known as the Age of Reptiles, was a geological era that spanned from approximately 252 to 66 million years ago. It is divided into three periods: the Triassic, Jurassic, and Cretaceous.
The Mesozoic Era is characterized by the dominance of reptiles, including dinosaurs, pterosaurs, and marine reptiles, as well as the evolutionary rise of mammals, birds, and flowering plants.
It was a time of significant geological and biological changes, including the breakup of the supercontinent Pangaea, the evolution of new ecosystems, and the eventual mass extinction event that marked the end of the era and the dawn of the Cenozoic Era.
Therefore, option c is correct.
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Answer: I need to see the dialogue to answer:)
Explanation:
Answer:
b i just took the test
Explanation:
pls mark brainliest
The ideas where to talk about communism and how it spreaded in the the 19th century im pretty sure.
b. False
b. a policy of providing economic relief to South Korea and other war-torn nations
c. the belief that the United States must save European economies following World War II
d. the hope that communists would be treated equitably and incorporated into American society
McCarthyism was a tactic of spreading fear with often baseless accusations of communist activities in the United States. The correct option is (a).
Making erroneous or unsubstantiated charges of treason and subversion, particularly in relation to anarchist, communism, and socialism, and especially when done in a visible and attention-grabbing way, is known as McCarthyism.
Increased political repression, persecution of left-leaning people, a campaign to foster distrust of claimed communist and socialist influence on American institutions, and Soviet spying were its defining characteristics.
The House Un-American Activities Committee's hearings and Senator McCarthy's investigations into supposed communists are two of the most prominent instances of McCarthyism (HUAC).
Therefore, McCarthyism was a tactic of spreading fear with often baseless accusations of communist activities in the United States.
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