a biological washing detergent contains enzymes which remove stains like mucus and oils from clothes which are soaked in water with the detergent explain why the stains should be removed faster in with the detergent in water at 35 degrees Celsius rather than at 15 degrees Celsius ​

stimulus is a change in the environment that causes an organism to react. the response is the reaction to the stimulus. some examples of stimuli for zebras are drought, to many predators, and bad feeding grounds such as dead grass or plants. zebras respond to stimuli just like all other living organisms

the contamination

we are putting to many trash.