What are the different answers?
Macrominerals are needed in large amounts.
Trace minerals are needed in very small amounts.
Macrominerals are calcium, phosphorus, magnesium, sodium, potassium, chloride, and sulfur.
Trace minerals are iron, manganese, copper, iodine, zinc, cobalt, fluoride, and selenium.
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
Answer:
You require goggles,masks,and gloves whilst dealing with chemicals, you also require masks,gloves, and a coat while operating a surgery in order to avoid getting sick by any diseases or such, another activity that requires safety equipment is constructing, if a brick or something hard were to fall on your head you'd have a helmet to protect you.The fourth activity I could say requires safety equipment is rock climbing it's the same principal as you would not want to injure yourself.
<em>Mark as brainliest if you please.</em>
Explanation:
