雅思小作文流程图 水循环

Task1: The diagram below shows the water cycle, which is the continuous movement of water on, above and below the surface of the Earth.

The flow chart illustrates how water cycle works.

The flow chart illustrates the continuous movement of water on, above and below the surface of the Earth.

The source of energy for evaporation is primarily solar radiation

The flow chart illustrates the natural process known as water cycle. In general, there are three stages of the process, beginning with the evaporation of water. The water then falls as rain and eventually flows/runs back into oceans again.

Looking at the first stage of the process, it happens in the ocean where water evaporates because of heat from the sun. It is noteworthy that 80% of water vapor in the air comes from the oceans.

At the following stage labeled ‘precipitation, condensing water vapor forms cloud, after which water falls as rain or snow.

At the final stage, rainwater may take various paths. Some of it may fall into lakes or return to the oceans via ‘surface runoff’. Otherwise, rainwater may filter through the ground,

storing between the surface and impervious layer as groundwater. Salt water intrusion is shown to take place just before water passes into the oceans to complete the cycle.