That's not answerable because you do not specify anything. The effects you ask very much depend on the identity and nature of the materials, their quantity, the nature of their decay and of any by-products, the objective hazards they pose intact and in decaying, the state of any necessary storage etc., and the exposure of people to those hazards.
The effects of Nano particles is unkown small particles could act much like asbestos does and could pose a risk to human health and the environment.
its a process of diffution
Yes, heterogeneous materials (mixtures) are more common.
medical scientist
Screens can be harmful due to their potential negative effects on physical and mental health. Prolonged exposure to screens can lead to eyestrain, disrupted sleep patterns, and sedentary behavior, which is associated with various health issues. Additionally, excessive screen time can contribute to decreased social interaction and increased risk of anxiety and depression.
The decaying of food has positive and negative effects on human life. Decaying matter fertilizes the soil and allows plants to grow, aiding human agriculture. However, decaying matter also cultivates harmful microorganisms that can cause diseases in humans.
wiki
Shrinkage
The health effects associated with ozone are:Suppression of immune systemEYe cataractSKin cancer.
they can make you sick but its not that bad for you
with pictures?
it depends on the type of drug which you are using Every category of drug have its own side effects on human health.
i don't know the answer for this question
decaying human flesh
decaying human flesh
causes problems with nervous system
See "Does the hole in the ozone layer effect human health?"