Explanation: you have to take the verb and add: -é , ás, -á, -emos, -éis, -an. The choice depends on the person you refers to. 1- conservaré 2-contaminaran 3- cuidará 4- hará (irregular) 5- protegerás 6-pondremos (irregular)
Sound intensity, amount of energy flowing per unit time through a unit area that is perpendicular to the direction in which the sound waves are travelling.