Question 1:

Which of the following best describes groundwater?

Explanation: Groundwater refers to water that is stored below the Earth's surface in porous rocks and sediments. It fills the spaces between particles and flows through underground formations called aquifers.

Question 2:

Which of the following is an example of an aquifer?

Explanation: An aquifer is an underground layer of permeable rock, such as sand and gravel, that can store and transmit groundwater. It acts as a natural reservoir that can be tapped for drinking water.

Question 3:

How does water enter an aquifer?

Explanation: Water enters an aquifer through the process of infiltration. This includes the percolation of precipitation into the ground and the movement of surface runoff into the underground layers of soil and rock.

Question 4:

What is the main source of groundwater?

Explanation: The main source of groundwater is precipitation in the form of rainfall and melting snow. As this water seeps into the ground, it gradually replenishes and recharges the aquifers.

Question 5:

What is the significance of groundwater and aquifers?

Explanation: Groundwater and aquifers are of significant importance as they serve as important sources of drinking water and irrigation for human populations. They also help sustain river flow during dry periods and provide a natural balance to the water cycle.