Answer: Yes, what you put is correct...
Explanation: Icelandic houses are built out of wood with grass growing over them, whereas Vietnamese homes are typically built minimally using reeds, etc. The main difference is that where the grass insulates from the cold (I’ve been in one and they really work!) the houses in Vietnam are built to keep all occupants as cool as possible.
Answer:
through increasing trade Brazil's long coastline helped the country to develop
Droughts is your answer because flooded their dam by destroying it and put malaria in the water which flooded.