An earthquake is the shaking of the ground cause by seismic waves. Almost all earthquakes occur when pent up stress in rocks along large, active faults (like the SAF) is suddenly released as the rock breaks.n earthquake is the shaking of the ground cause by seismic waves. Almost all earthquakes occur when pent up stress in rocks along large, active faults (like the SAF) is suddenly released as the rock breaks.
Autism spectrum disorder - Causes. Causes of autism spectrum disorder. The exact cause of autism spectrum disorder (ASD) is currently unknown. It's a complex condition and may occur as a result of genetic predisposition (a natural tendency), environmental or unknown factors. Genes.
10 Common Symptoms of Adult Autism. Diagnosing autism in adults can prove challenging, however, there are common symptoms of autism that can be recognized in adults. Here are 10 of them to watch out for. Keep in mind that if you only have one or two of these symptoms, it does not necessarily mean that you suffer from autism. Look for several of these symptoms as a cause for concern.