Answer:
Cold fronts usually bring cooler weather, clearing skies, and a sharp change in wind direction and as your body experiences cold air, your immune system can fight infection more effectively.
Hope this helps :)
The sequence of events that can lead to magma becoming soil is C. crystallization followed by exposure and weathering. Under these circumstances it may happen that magma actually turns to soil - it cools off so much that it becomes the ground we walk upon.
Its spread mainly because of the pest rats and also fleas
It is the theory that the landscape around took years to be made by nature so in another few years it could make new landscapes appear.