Unless you have extremly bad breath, no.
No, talking to a plant too much will not kill it. In fact, some studies suggest that talking to plants can have a positive effect on their growth. However, overwatering or using the wrong soil type can harm a plant.
yes, it will kill them
if you add too much of it it willsalinate the water and may kill the plant.
to be honest too much fertiliser itself sprayed on the plants can slowly kill you
too much water too little water too much fertiliser not enough fertiliser herbicides amongst other methods
too much water will kill the roots
Too much salt can kill plants including chrysanthemums.
Too much heat could dehydrate water and kill trees and plants.
Talking too much could be considered noise pollution, but that's about it.
If you have too much of it, yes.
Too much baking soda can cause a build-up of materials and kill plants.
Well, chemicals can harm you if you eat your plants, it can seep into ground water and contaminate drinking water, and can, if you use too much, kill plants.