Something that is impervious does not allow fluids to pass through it. Buildings and paved roads don’t allow water to pass throu
gh them. They are called impervious cover. These maps of Connecticut show the percentage of land covered by impervious surfaces such as pavement and buildings. The map on the left shows current conditions, and the map on the right shows predicted future conditions. Which of these statements is true? a. The percentage of impervious cover is expected to shrink in Connecticut.
b. Projections show that the entire state will soon have more than 10% impervious cover.
c. Projections show that the entire state will soon have more than 25% impervious cover.
d. Tidal marshes (wetlands) will be protected from the expansion of impervious cover.
As the asthenosphere is a highly viscous layer of the earth and is a mechanically weaker and ductile region and is upper part of the earth and its depth range for 50 to 200 meters that is below the mid-oceanic ridges and its thickness depends on the temperature.
In some regions, the depth can be of 700 km, as the temperature increases at greater depths the rocks get deformed and thus rigid lithosphere begins to float on this layer and causes the movement of a tectonic plate.