1. if under the age of 16 find consent from parents, if over 16 make sure they sign a consent form
2. if the participant needs to be deceived during experiment make sure to debrief them after
3. always put participants physical, mental and emotionally health first
4. make sure they are aware of that they can withdraw from the study at any point before publishing
That is where the Jim crow laws of segregation were dominant.
Answer: toeboard
Explanation: The Occupational Safety and Health Administration defines the Walking-Working surfaces regulation for the secure construction of stairs in industrial environments. For platforms or walls that are 4 feet or higher above the ground and do not have surrounding walls, it is mandatory to build a standard railing around them. In cases where there is a moving machinery, people can pass or there is an equipment which would be harmful when falling objects come in contact with it, the railings must have a toeboard.
A toeboard is an equipment fixed vertically to prevent items from falling for the platform.
Not really, hhh i dont think theres anyone unless there paid who endorses Donald trump