Who has the power in the united states to declare war?

president
the senate
secretary of state
congress< < < <

Plants can have a positive and negative effect on the rate of weathering

Triangle xyz is translated 4 units up and 3 units left to yield triangle x'y'z' what is the distance between any two corresponding points on triangle xyz and trianglex'y'z' ?

Which of the following is not a reason why shenzhen, china, is considered an emerging global city