Answer:
A : The rich and fertile farming soil
Explanation:
In many places where the ground freezes and thaws each year, most water is frozen. Plants must survive the winter with little water. ... Trees thrive in the rich, moist soil. In the Arctic, huge forests cover areas of seasonally frozen ground.
The obstacles that faced by the colonial soldiers at the Valley forge during the american revolution was :
Disease, a harsh winter, and lack of food
This condition greatly reduced their fighting power during the war
hope this helps
A. the declaration of sentiments