Select all steps below that you handle chemicals safely. using droppers to transfer small amounts of chemicals using tongs to move hot objects checking the test tubes for chips prior to using them washing your hands after you finish the lab

Following are the steps to be taken while handling chemicals with precautions:  

1. Application of droppers to transfer small amounts of chemicals into another glassware, as it will inhibit the unwanted overflow of the chemical.  

2. Check the test tubes for chips before using them, otherwise, it may leak the chemicals within them.  

3. Application of tongs to move the hot components as they may even result in extreme burns.  

4. Washing the hands after concluding the lab experiment is necessary, as it will make sure that the food does not get intoxicated with the chemicals present in the hands.  

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affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.