Which word correctly completes this sentence? el memoriza los diálogos para la obra de teatro. tramoyista director actor bailarina

Sheila conducts an investigation to see how the amount of salt dissolved in water affects the density of the water whichstatement best describes the correct plan for her procedure? the density and the amount of water are controls, and the amount of salt and the type of salt are variablesthe amount of water and the amount of salt are controls, and the type of salt and the density are variablesthe type of salt and the amount of water are controls, and the amount of salt and the density are variablesthe type of salt and the density of water are controls, and the amount of salt and the amount of water are variableso

Can someone me to find the right verbs and conjugations in spanish?

Pablo neruda wrote poems about the important things in his life. (examples: the value of life, politics, love) what are the most important ideas, principles, and activities in your life? write your response in complete sentences in spanish.