Can someone help me on this I’ll mark u as the brainliest

Choose the three changes to spanish and american claims in north america by the adams-onis treaty.

Which of the following was not part of roman empire a: syria c: anatolia b: greece d: russia h.e.l.p asap

After the success of the sputnik launch, the united states feared that they would never be able to launch their own satellite, the ussr had used technology developed by the united states, the soviets had superior nuclear capabilities, that any future us satellites would not be as successful.