100 points for this i need it asap Which of the following is an example of a concurrent power?

Signing a trade treaty with a foreign country
Building a new interstate highway
Collecting taxes
Determining the legal marriage age

How do i do this? true or false? : elephants have the same dna as humans and bananas alike.

:) during the cold war, people were afraid of communists, both outside and inside the united states. the red scare and mccarthyism that grew out of these fears were damaging to the american way of life. during the mccarthy years, many of the freedoms guaranteed in the bill of rights were limited. write a paragraph explaining what lessons can be learned from the mccarthy era about what u. s. citizens need to protect in order to preserve the democratic political system and the american way of life.

What was a result of the use of farming machines