PLEASE HELP I don't understand​

Acid rain is a secondary pollutant. select the best answer from the choices provided true or false

57: 48 read this excerpt from "sea fever" by john masefield. which statement best describes how masefield creates a hopeful mood in the excerpt? and the wheel's kick and the wind's song and the white sail's shaking, and a grey mist on the sea's face, and a grey dawn breaking the free form flows cheerfully and unpredictably. the free form creates a sentimental conversation between man and sea. the fixed meter and predictable rhyme scheme create an upbeat rhythm the fixed meter imitates the rhythm of a military march or parade. mark this and retum save and exit next submit

Kyle and his brother have a marble set of the marbles 12 are blue this represent 50 over a hundred of all the marbles what decimal is equivalent to 50 / 100