Name the following all answers please give me

Dear Student, (1) Excessive use of fertilizers in the makes the soil acidic because fertilizers contain large amount of mineral acids. (2) Phenolphthalein, Litmus paper and Methyl orange are called indicators. These indicators help to classify the substance as acidic or basic. (3) The substance that taste sour and turn blue litmus red is Acid. (4) The substance formed after neutralisation reaction of acid and base is called salt. For example, When Hydrochloric Acid reacts with Sodium Hydroxide (Base) then Sodium Chloride(Salt) is formed. (5) The substance which turn red litmus blue is called base. These substance have a bitter taste. Regards