Question

marshy or low lying areas are filled to dash the land

Answer 1

Answer:

marshy or low lying areas are filled to reclaim the land

Explanation:

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Answer 2

Marshy or low-lying areas are filled to reclaim the land.

Land reclamation

land reclamation or simply reclamation is also known by the term land-fill. Its the process of formation of new land from oceans, seas, riverbeds, lakebeds, and marshy areas.

Marshes and land reclamation

• This is done to acquire more land, the land thus created is called reclamation ground or landfill. Marshes are a category under the ecosystem where the water covers the terrestrial area for a longer period of time.
• Marshes are usually treeless and grasses and herbs are the dominant species found here. The world's largest freshwater marsh is Okavango Delta(5800 sq. miles)
• Marshes are one of the areas that are reclaimed for agricultural purposes. As, it has shallow waters they are more prefered over the other ones for land reclamation.

Hence marsh or low-lying areas are filled to reclaim the land for agricultural purposes. Even, seas, oceans, rivers, lakes, and other water bodies are also used for the same purpose.