after the twin studies of the mid-1900s were heavily criticized, researchers moved on to which other methodological approach to examine the nature versus nurture debate?

What two things did former british prime minister winston churchill affirm in his iron curtain speech?

Wich statement about the delegates at the constitutional convention is accurate

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.