Question

Is this a run on sentence, if so how can we correct it?

It was raining, and because I did not bring an umbrella, I got wet.

Answer 1

Yes, it is a run-on sentence.
It should be:

Because I did not bring an umbrella while it was raining, I got wet.

Answer 2

yes

Step-by-step explanation:

I got wet in the rain but I did not carry an umbrella

this is what it supposed to be