Question

why places in interior of the continents have extreme tempratures

Answer 1

the places in the exterior of continents have extreme temperatures due to 2 reason

first,
as we go deep inside the earth the temperature increases considerably

second,.
due to the large amount of magma present inside he earth generates energy and thus makes the temperature rise...

Answer 2

here is your answer

because of the following reasons

1. rock heats up and cool off faster then water
2. water heats up and cool off faster than rock
3. all continental interior are tropical and recieve more solar radiation than the average coastel regions