The correct answer is c) Phumdis.
Phumdis are floating islands made of vegetation, soil, and organic matter. They are found in Loktak Lake, a large freshwater lake in Manipur, India. Phumdis are home to a variety of plant and animal life, and they are an important part of the local ecosystem.
Phumdis are formed when organic matter, such as plant debris and animal waste, accumulates in shallow water. Over time, this material builds up and forms a floating island. Phumdis can be quite large, and they can move around in the water due to wind and waves.
Phumdis are an important part of the local ecosystem. They provide a home for a variety of plants and animals, including fish, birds, and insects. Phumdis also help to filter the water in Loktak Lake.
However, phumdis are also under threat from human activity. Deforestation, agriculture, and pollution are all contributing to the decline of phumdis. As a result, the number of phumdis in Loktak Lake has declined significantly in recent years.
There are a number of things that can be done to protect phumdis. One important step is to reduce deforestation in the area around Loktak Lake. This will help to prevent soil erosion and the loss of organic matter, which are essential for the formation of phumdis. Another important step is to reduce pollution in Loktak Lake. This will help to protect the plants and animals that live on phumdis.
Phumdis are an important part of the local ecosystem, and they are worth protecting. By taking steps to reduce deforestation and pollution, we can help to ensure the survival of phumdis in Loktak Lake.