California drought: Joaquin Valley sinking by 2 inches every month

The video discusses the increased consumption of groundwater due to drought conditions, leading to the pumping of groundwater from deep aquifers. This process reduces water pressure and causes the clay particles in the Corcoran clay layer to compact, resulting in the collapse of the ground above. Once compacted, the clay cannot be repaired, permanently reducing future water storage capacity. Subsidence has been observed throughout the San Joaquin Valley, with significant sinking near Corcoran and El Nido.

What is one of the main reasons for increased groundwater consumption?

• Current drought conditions

• Urban development

• Rising sea levels

• Heavy rainfall

What happens to the water pressure when groundwater is pumped from the deep aquifer?

• It increases

• It remains the same

• It fluctuates

• It decreases

What is the consequence of clay particle compaction in the Corcoran clay layer?

• It can be easily repaired

• It leads to permanent ground collapse

• It increases water storage capacity

• It has no significant impact

Which towns experienced significant subsidence in the San Joaquin Valley?

• Sacramento and Stockton

• Corcoran and El Nido

• Fresno and Bakersfield

• Los Angeles and San Diego

By how much did the ground near Corcoran sink over a six-month period?

• 5 inches

• 20 inches

• 8 inches

• 13 inches