I have no idea hopefully someone can help you with this
If your eyes happen to come into contact with acetic acid, you should immediately wash your eyes with water for no less than 15 minutes
B definitely because d is just dumb, c is not possible, a is not even true so b
Can I see the models?? I don´t know what the cactus looks like/
The best way to increase validity of data in an experiment is by performing the experiment numerous times and obtaining measurements and data upon each run of the experiment.