I would say its 2. Working with harsh chemicals
The three sterotypes about autistic people is...
1. People with autism are intectually disabled.
2. People with autism don't experience or express their emotions.
3. People think autistic people are 'weird.'
Answer: Manipulation of the Independent Variable
Again, to manipulate an independent variable means to change its level systematically so that different groups of participants are exposed to different levels of that variable, or the same group of participants is exposed to different levels at different times.
Explanation: hopes this helps and if u need any more help just let me know and i will help u.
Dilated pupil, flushed skin,poor appetite,increases body temperature,hallucinations, anxiety, paranoia