The diagrams below show two methods of collecting water for irrigation purposes. summarize the information by selecting and reporting the main features, and make comparison where relevant.

The diagrams illustrate the ways people collect

water

from wells for

irrigation

treatment and from these channels to fields for farming.

Diagramdiagram

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Diagram

A shows how to collect

water

from

irrigation

manipulation to fields.

This

task is completed with a simple system built with a

basket

made of bamboo or leather and 4 ropes. These rules are tied with the sides of the

basket

: 2 ropes aside and 2 others on the opposite side. There are two people standing next to a 1-2 metres depth

irrigation

channel. Each of them holds 2 jurisdictions connected to the

basket

.

Next,

they throw the

basket

into the channel to get the

water

.

Finally

, the

basket

is pulled up and moved towards the fields to force

water

inside it to come out. Different from the " Swing

basket

" system, the "Rope and bucket" approach which is shown in diagram B uses an ox

instead

of two people.

Due to

this

animal`s strength, the collected groundwater is up to fifty metres deep and it is collected from a well. "A bucket and pulley" system is used in

this

way. The ox is attached to the pulley, and the bucket rises from the well it walks downhill. Following that,

water

is put into

irrigation

channels.

Overall

,

it is clear that

both methods are easy to carry on.

Nevertheless

, the approach in diagram A relies on a different form of power from the mode in diagram B and the collected groundwater is from various depths.