Water that seeps into the ground and is collected underground (frozen or liquid) is .

Groundwater

Explanation:

Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly through geologic formations of soil, sand and rocks called aquifers.

length of the cultivating season was not a problem of new england agriculture

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)