This type of breakwater. has up to now been mainly used in Canada, Iceland, Norway and Denmark (Faero Islands). The main advan-. tage of the berm breakwater is that smaller stones can be. used on this dynamic stable berm breakwater than on a sta-. tic stable conventional rubble mound breakwater.
Click on image for larger version. The photosphere is the visible surface of the Sun that we are most familiar with. Since the Sun is a ball of gas, this is not a solid surface but is actually a layer about 100 km thick (very, very, thin compared to the 700,000 km radius of the Sun).ince the Sun is a ball of gas, this is not a solid surface but is actually a layer about 100 km thick (very, very, thin compared to the 700,000 km radius of the Sun).
Best Answer: asthenosphere, a relatively narrow, mobile zone of the mantle made of molten and solid rock that flows from convection currents to carry the lithospheric plates above.. . The asthenosphere is a part of the upper mantle that exhibits plastic properties. It is located below the lithosphere (the crust and upper mantle), between about 100 and 250 kilometers deep.