Read the passage and answer the questions A and B.

Bangladesh is blessed with huge inland open water resources. It has numerous rivers, canals, beels,  lakes, and vast areas of floodplains. Hakaluki haor is one of the major wetlands of Bangladesh. With a  land area of 18,386 hectares, it supports a rich biodiversity and provides direct and indirect livelihood  benefits to nearly 190,000 peoplE- This haor was declared an Ecologically Critical Area in April 1999 by  the government of Bangladesh. Hakaluki is a complex ecosystem, containing more than 238 interconnecting beels and jalmahals. The  most important beels are Chatla, Pinlarkona, Dulla, Sakua, Barajalla, Balijhuri, Lamba, Tekonia,  Haorkhal, Tural, Baghalkuri and Chinaura. Hakaluki Haor is bounded by the Kushiara river as well as a part of the Sonai-Bardal river to the  north, by the Fenchuganj-Kulaura railway to the west and to the south, and by the Kulaura-Beanibazar road to the east. The haor falls under two administrative districts, Maulvibazar and Sylhet.  Some 190,000 people live in the area surrounding the haor. Hakaluki Haor is an important source of fisheries resources for Bangladesh. Kalibaus, Boal, Rui,  Ghagot, Pabda and Chapila are the main fish species found herE- From the Kushiara there are frequent  upstream movement of fish towards the beels and tributaries of Hakaluki. The beels in Hakaluki haor  provide winter shelter for the mother fisheries. In early monsoon these mother fisheries produce  millions of fries for the entire downstream fishing communities. Floodplains are also an important  source of fisheries resources within the area. However, many of the beels have lost their capacity to  provide shelter for mother fisheries because of sand deposits from upstream rivers and canals, use of  complete dewatering technique for fishing and lack of aquatic plants to provide feed and shelter for  parent fish.