It's a type of fossil specifically called a 'Cast.'
An alluvial fan is a triangle-shaped deposit of gravel, sand, and even smaller pieces of sediment, such as silt. This sediment is called alluvium. Alluvial fans are usually created as flowing water interacts with mountains, hills, or the steep walls of canyons.
Also, Marine sediment, any deposit of insoluble material, primarily rock and soil particles, transported from land areas to the ocean by wind, ice, and rivers, as well as the remains of marine organisms, products of submarine volcanism, chemical precipitates from seawater, and materials from outer space.
Tibet is the world's highest plateau.
Answer:
SW
Explanation:
When a hurricane intensifies and the wind speed increases, an eye begins to form in the center of the storm. This normally occurs once the winds reach about 80 mph. Almost always the eye is circular when viewed from above, and measures about 20 to 40 miles in diameter. It looks cylindrical in a cross section of the storm, and extends through the center of the storm like a chimney. The air over the storm sinks through the center of the eye.
Hurricanes are formed from centers of low atmospheric pressures in warm waters around which strong air currents begin to circulate.
When ocean water heats up, the air rises and swirls to fill the low pressure that this creates.
This causes the air to be sucked in and up, which reinforces the low pressure in the center.
Thus, when the wind speed increases to 128 km / h, a kind of "vacuum" is created that meteorologists call "eye", since it has an almost circular shape.
