Please answer these 3 questions i will mark brainliest and give extra points!!!

The idea of a progressive income tax, which is still a standard taxing policy in the u.s. today, was aggressively sought by the populist party. select the best answer from the choices provided true or false

Nami conducts an investigation on plants. she places a grow light on a timer to give the plants different amounts of light to see if this would affect their growth. in this investigation, the amount of light is the .

What happened in georgia as a result of the supreme court ruling in brown v. board of education?