Answer: 4 This group of substances can produce chemical vapors that can be inhaled to produce a mind-altering effect.
stimulants
psychoactives
inhalants
depressants
<span>Young children could volunteer with animal services, for example Guide Dogs for the Blind or Hero Dogs. They could volunteer at their local library or around the house to do chores, or around the neighbourhood, for example car washing.</span>
Answer:
1. The retina contains three kinds of colour receptors
Explanation:
Young-Helmholtz theory color vision says human can perceive colour due to the presence of colour receptors in the retina that receives colour in various wavelengths