When to use "more than"
"More than" is used when comparing two quantities that are being counted or measured. For example:
She has more than 10 books on her shelf.
The temperature is more than 90 degrees Fahrenheit.
In these examples, "more than" is used because the quantities are being counted or measured.
When to use "over"
On the other hand, "over" is used to indicate a spatial relationship, such as something physically located above another thing. It can also be used to describe an amount that is greater than a specific value or threshold. For example:
The plane flew over the mountain range.
The number of attendees was over 100.
In the first example, "over" is used to indicate a spatial relationship. In the second example, "over" is used to describe an amount that is greater than a specific value.
So, the key difference is that "more than" is used to compare quantities, while "over" is used to indicate a spatial relationship or to describe an amount that is greater than a specific value.
