Select the correct preposition:
1.
Barranquilla is located
on/at
the Caribbean coast.
2.
The temperature ranges
by/from
25 to 30 degrees.
3.
The city is situated
in/at
the mouth of the Magdalena River.
4.
Barranquilla is surrounded
by/for
swamps and marshes.
5.
It is a popular destination
for/by
tourists.