Question

A ____________ (spring/lake) is source of groundwater.

Answer 1

• Spring: Natural springs form when underground water exerts pressure and emerges from the Earth's surface through any available opening.
  This water is known as spring water.
• Lake water: These are small reservoirs. They are the surface water i.e. available on the surface of the earth.
• These are caused by rainwater accumulation in low-lying areas.
• Seepage from groundwater reserves also contributes to lake water levels.

Thus, A Spring is the source of groundwater.