The atmosphere is a complex gaseous structure around our planet. It serves many purposes, such as creating the wind, lightening and precipitation. The atmosphere can be divided into five layers based on temperature. These layers are named troposphere, stratosphere, mesosphere, thermosphere and ...

The composition of atmosphere is made up of different gases which surrounds the earth. Two important gases nitrogen and oxygen together are found on the 99% part of the atmosphere. The other components includes carbon dioxide, argon, carbon monoxide, neon, helium and various other gases. Gases ...

Erosional landforms are formed through a variety of erosional processes including weathering, decay, chemical reactions, and water. Erosion occurs when surface material is removed from the Earth's surface by any natural process. Pediments and Pediplains Gently inclined rocky floors close to ...

Wind is caused by the uneven heating of the air by the Sun, the irregularities of the Earth's surface, and rotation of the Earth. The desert floors get heated up too much and too quickly because of being dry and barren. The heated floors heat up the air directly above them and result in upward ...

Landforms are formed by vast quantities of sand, gravel and debris which are carried by water. Depositional landforms include beaches, spits and bars. These three form during two different depositional processes. Beaches form as water carrying sediment comes to rest at the coastline; however, ...

Generally, the caves that extend into the cliff beyond the level of highest high tides are called sea caves. The sea caves can be classified as overhanging and underhanging caves, the former being those whose roofs overlie than their openings and the latter being those whose roof and opening line ...

There are different types of coasts which are defined by the type of bedrock. Low sedimentary coasts are ones which are formed over plain sedimentary rocks. The coasts are usually smooth with occasional incursions of water in the form of lagoons and tidal creeks. Low sedimentary coasts may have ...

Coasts, waves break with great force against the land shaping the hill sides into cliffs. Rocky coasts are found in high mountainous regions where steep hills plunge directly into the sea. Along the high rocky coasts, the rivers appear to have been drowned with highly irregular coastline. The ...

A current is a movement of water. Currents can occur in oceans, seas, and rivers. In coastal waters, tides cause the greatest daily changes in water currents. Coastal currents are intricately tied to winds, waves, and land formations. Winds that blow along the shoreline—longshore winds—affect ...

Pools, Sinkholes, Lapies and Limestone Pavements Pool, also known as a sink, a sinking, a plunge or a bottomless pit. A pool is a depression in the ground caused by a natural process called dissolution in which water gradually erodes the surface beneath it creating a cave but never reaching all ...

Percolation is the way in which water moves through solids. Rain seeps into the ground and groundwater flows towards the streams to become surface water or seeps into the underground reservoir, or aquifer. The water then moves through pores within the rock. This process of groundwater movement ...

There are two types of sedimentary landforms: depositional and erosional. Depositional landforms result from layers of sediment being deposited by water, wind or ice. Erosional features occur when the mechanical actions of glaciers, rivers and waves have removed materials from the earth's ...