Because that's how the scientific method works. You see something happening, you get an idea of why it happens that way, then you perform an experiment to see if your idea is correct.
false
theory A+ :D
A "cause" means why or how something happens. It is a commonly held and scientifically evidenced assertion that, if not all, certainly most things happen due to a cause. This is known as the principle of "cause and effect".
it depends..if it is a food product it can make you sick or ill but if it is something else then it can cause damage to the property
If it happens often, it happens commonly.
weekly
Annual.
In my opinion yes it is. Often suggests something happens quite regularly and rarely suggests it doesn't happen that .....eh often !! ha good question
triannual
An annual event
Frequency is how often something happens.
How often something happens.
No, often and seldom are not the same. "Often" means something happens frequently or regularly, while "seldom" means something happens rarely or infrequently.
When you foresee something and it happens, some people call it dejávu, others may call it prophecy. Depends on your forté
The probability of whatever it was that happens.
A triennial event happens every three years.