When fast rays have passed through the mineral with greater velocity.
The SI unit of retardation is meters per second squared (m/s^2). It represents the rate at which an object's velocity decreases over time.
A retardation factor of zero means that a chemical contaminant moves at the same rate as the groundwater in a porous medium, with no retardation or delay. This implies that the contaminant is not being adsorbed or slowed down in the subsurface environment.
Stem cell research has the potential to help with mental retardation by better understanding the underlying causes of intellectual disabilities and developing new treatments. However, more research is needed to fully understand how stem cells could be used to improve outcomes for individuals with mental retardation.
Non mineral
mineral
iodine
Copper deficiency in children is associated with growth retardation. Zinc deficiency, Vitamin A deficiency and other nutritional deficiencies can also cause growth retardation.
Pseudo-retardation would be something that resembles or looks like retardation, but actually isn't. The term literally means, fake retardation.
No a dimple is not a sign of retardation.
Retardation = change in vel / time taken
Overstudy does not cause mental retardation.
Retardation - 2015 was released on: USA: 2015
The first spelling is correct: "Retardation."
Mental retardation has different levels. There is Mild intellectual disability; moderate intellectual disability; severe intellectual disability; and Profound intellectual disability.https://www.floridahospital.com/mental-retardation-mr/symptoms-and-signs-mental-retardation
TThere are quite high as it comes in different types of mental retardation.
literature review on mental retardation with reference
Exposure to lead can also cause mental retardation.