The last significant power that belongs only the the u. s. senate is the power.

The correct answer is that the Senate has the sole power to conduct impeachment trials.

The House has the sole power to draw up articles of impeachment.

i would think it's industries and hydroelectric power

the  equal rights amendment  (era) states: "equality  of  rights  under the law shall not be denied or abridged by the united states or by any state on account of sex." congress first introduced the era in 1923, but the campaign for ratification took off in the 1960s during the  civil rightsmovement.