Deposition may take place when a river enters an area of shallow water or when the volume of water decreases – for example, after a flood or during times of drought. Deposition at the mouth of a river can form deltas – for example, the Mississippi Delta.

Deposition. To transport load a river needs to have energy so when a river loses energy it is forced to deposit its load. When a river meets the sea a river will deposit its load because the gradient is generally reduced at sea level and the sea will absorb a lot of energy.

Rivers and streams deposit sediment where the speed of the water current decreases. In rivers, deposition occurs along the inside bank of the river bend [This “area” is where water flows slower], while erosion occurs along the outside bank of the bend, where the water flows a lot faster.

Fluvial transport is the process by which a river carries its load. The load bounces in line with the rise and fall in the velocity of the river; Saltation – small pebbles and stones are bounced along the river bed; Traction – large boulders and rocks are rolled along the river bed.

the source

Among different modes of transport, Railways are the cheapest. Trains cover the distance in less time and comparatively, the fare is also less to other modes of transportation. Therefore, Railways is the cheapest mode of transportation.

Water transport

Air transportation is the costliest mode of transportation whereas rail transportation is the cheapest mode of transportation.

We can conclude that water transportation is the cheapest means of transportation for long distances.

Rail transport

i) Waterways are the cheapest means of transport. ii) They are most suitable for carrying heavy and bulky goods. iii) It is a fuel-efficent and environment-friendly mode of transport.

The cheapest means of transport for a long distance is Waterways. The amount for loading and unloading goods is much cheaper if it has to travel a long distance. If one has to travel physically to a short distance then it is advisable to take a train. Railways are both cheaper and comfortable to travel.

newspaper is the cheapest means of communication . but radio is also one of the cheapest means of communication because when any person purchase radio then he /she put cell in the radio and use it of many years .

Moving goods by rail is often much cheaper, more efficient and less environmentally damaging than sending goods by road. Almost $500 billion of freight is transported by rail in the U.S. every year, with many trips of 1,000–1,500 miles or more.

Transportation Features and Modes

• Product Options. This feature is concerned with the number of different products that can realistically be shipped using a certain mode.
• Speed of Delivery.
• Accessibility.
• Cost.
• Capacity.
• Intermodal Capable.

Air Transport However, air is also the most expensive means of transportation; it is generally used only for smaller items of relatively high value—such as electronic equipment—and items for which the speed of arrival is important—such as perishable goods.

The following are Disadvantages of Air Transport:

• High Costs: Air transport is a costly service. Its operational costs are too high. Middle class and poor people can not affect its cash.
• More Risks: Air transport is prone to accidents. A small mistake can be very dangerous for passengers.

Advantages of Air Transport

• High Speed. Air is the type of freight capable of traveling long distances in short periods of time.
• Fast Service.
• Send almost everywhere your freight.
• High Standard of Security.
• Natural Route.
• There is less need for heavy packaging.
• Risky.
• Cost.