I'm 90% sure that the answer is D). all of these
Groundwater helps grow our food. 64% of groundwater is used for irrigation to grow crops.
Groundwater is an important component in many industrial processes.
Groundwater is a source of recharge for lakes, rivers, and wetlands.
Groundwater is the water<span> 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. </span>
Answer:
<em>Alfred Wegner</em> proposed the theory of <em>Continental drift</em> which suggested the continents move and started out in different positions from what they are currently. In the 1960s, scientists discovered the spreading apart of <em>the seafloor</em>. This in turn led to the theory of <em>Plate tectonics.</em> This theory says that the <em>earth's outer crust, the lithosphere</em> is made of plates which float on a "plasticlike" undersurface called the asthenosphere. Where these plates come together at their<em> boundaries</em>, changes take place in the crust and its feature.
Explanation:
Alfred Wegner proposed the theory of Continental drift which suggested the continents all continents were once connected in a large single mass that broke apart around 200 million years ago before slowly moving apart to where they are currently.
In the 1960s, Harry Hess, a geologist and Navy submarine commander during World War II, discovered the spreading apart of the seafloor. This in turn led to the theory of Plate tectonics. This theory says that the earth's outer crust, the lithosphere is made of plates which float on a "plasticlike" undersurface called the asthenosphere. Where these plates come together at their boundaries, changes take place in the crust and its feature.