CLOUDS

The shapes of Clouds may vary at different altitudes there are three altitudes. 

1. low-level clouds.

2.mid level clouds  

3. high altitude clouds.

 3. High High-altitudes

cirrus clouds are thin delicate and feather clouds these are the highest clouds formed entirely of ice crystals. 

Cirrocumulus clouds are generally white and Puffy on top like cotton wool. 

2. mid-level clouds

Altocumulus is somewhat similar to cirrocumulus clouds,  only they are larger white clouds arranged in a row.

 Altostratus clouds may be similar to a heavy cirrostratus cloud but they form a grey sheet of Clouds in the sky. 

1. Low-level clouds.    cumulonimbus is the most magnificent cloud rising to a height of 18000 m from the base. Cumulonimbus takes the shape of an anvil.  Its top is formed of ice crystals. Cumulus clouds are flat at the base and Doom shaped at the top.  these clouds are found at ha eight of  4500 feet where condensation begins. cumulus clouds are formed when hot air rises quickly.     Stratus clouds closest to the earth. They form a smooth sheet which is mainly responsible for drizzle.

GLACIER 

Glaciers are rivers of floating Ice.   Glaciers form in snowfields about the Snow Line where is perpetual snow. When annual snowfall exceeds melting and Drainage,  the snow accumulates in layers and compresses into the ice under its weight. Granular layers of snow have air in them.   a layer of Snow after air is expelled from it.

 Only 12% of an Iceberg is visible to us the rest remains below sea level.

 When a glacier reaches a lake or a sea sections of ice detach to form icebergs.

 As the snow pushes  Down Under in weight it acts as a powerful source of erosion. In Its complete course, the Glacier forms glacial troughs. Cirque, corries aretes, moraine, etc…..

STAGES OF RIVERS 

A river originates at a point called the source. This source could be a spring where e groundwater was accumulated it could be a Glacier an overflowing lake. In its long course,  it may be joined by small streams or rivers called tributaries. The area through which the river flows along with its network of tributaries and streams is called the drainage basin. 

The river in its youthful stage falls steeply creating-V shaped valleys and spectacular waterfalls. It also sweeps stones silt etc along with it. Reaching the Planes the flow is neither steep nor so fast. 

This is the matured stage when the river deposits silt On its blanks. When meandering straightens their course, an Ox bowl lake formed a little away from its course. At its mouth, a river slows down since it loses its capacity to carry forward the sediments.

 This is the older stage the load of Alluvial deposits dropped in fan-shaped at the stage is known as a delta. The fine branches of water running through the delta and reaching the sea or called distributaries. The course of a river mostly ends at a sea or a river.

Thanks for reading 🙂 

                      ~ Rekha