Question

why is groundwater an important source of freshwater storage?
a. it constitutes approximately 30% of earths freshwater.
b. it is the only viable source of freshwater in some areas.
c. it is available in conditions of drought.
d. all of the above

Explanation:

• Groundwater constitutes about 30% of Earth's freshwater.
• In some arid or water - scarce areas, it is the only viable freshwater source.
• It is stored underground and can be accessed during droughts when surface water (like rivers, lakes) may dry up.

Answer:

d. All of the above