Como chamou-se a crescente militar são das duas superpotências no século XX como forma de intimidação aos oponentes a corrida espacial é corrida armamentista corrida econômica e de corrida tecnológica

Used all four fields.

Explanation:

The two superpowers uses a way of intimidating their opponents through the space race, arms race, economic race and a technological race. That country who is on the first number in these four fields is considered superpower and having edge on their opponents. The most important field is the economic race because the country having strong economy, so it has high purchasing power as well as more influence on other countries so that's why in this century, countries achieve good economy to counter its opponents.

- three-quarters or two-thirds..

- "the constitution provides that an amendment may be proposed either by the congress with a two-thirds majority vote in both the house of representatives and the senate or by a constitutional convention called for by two-thirds of the state legislatures."

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