Read the following text and fill in each gap with a suitable word based on the information of the text: 

Water pollution can occur in oceans, rivers, lakes, ponds and underground reservoirs. As different water sources flow together, the pollution can spread easily and quiekly. Causes of water pollution include: 

• increased 
• erosion 
• improper waste disposal and littering 
• leakage of soil pollution into water supplies 
• organic materials that decay in water supplies 

In fact, polluting the land means polluting the water. Throwing away a toxic substance on the ground near a water source means it eventually reaches the body of water. As a result, the water is polluted. Industrial wastes must not be disposed in rivers or lakes. We need to be more careful about disposing household wastes too. Use of pesticides means that when it rains, chemicals used in the lawn or garden wash into the water bodies. Therefore, we must be aware of the dangers of using pesticides as they may pollute our rivers, canals and lakes. 

Water is all (a) ________ us. Everything on the planet needs water to survive. It is really (b) ______ to our lives. But water is being (c) _______ in different ways. People do unwise work and pollute water. To save ourselves we must take (d) ________ to stop water pollution. All  walks of people should be careful about the use of water. We should not waste water too. All water (e) _________ are in the threat of pollution or already polluted.

Our Independence Day

26 March reminds us of the historic day in 1971 when Bangladesh declared its independence. It signifies the commencement of our nine-month-long Liberation War and the ultimate victory against oppression. The day is celebrated annually to commemorate the heroic struggle and immense sacrifices made by the people to achieve a sovereign nation.

26 March is observed as Bangladesh's Independence Day because on this day in 1971, the Father of the Nation, Bangabandhu Sheikh Mujibur Rahman, declared the independence of Bangladesh. This declaration ignited the Liberation War against Pakistan, leading to nine months of intense conflict. The day serves as a solemn reminder of the immense sacrifices made by millions of martyrs and freedom fighters who laid down their lives for the country's sovereignty. It is a day of national pride, remembrance, and renewal of the commitment to uphold the values for which the nation was founded.

The beginning of Independence Day celebrations.

The 31-gun salute is a ceremonial gesture that marks the official beginning of the Independence Day festivities in Bangladesh. It is a traditional military honor, serving as a symbol of respect and solemnity for the occasion. This salute commemorates the sacrifices made during the 1971 Liberation War and honors the birth of the nation. It sets a formal and respectful tone for the day's events, which include various cultural programs and tributes to the martyrs.

The cultural programmes held on Independence Day play a vital role in educating and inspiring the populace. They specifically highlight the arduous struggle and immense sacrifices made by the people of Bangladesh during the Liberation War of 1971. These events serve to remind everyone, especially the youth, about the historical context and the profound price paid to achieve the nation's independence, thereby reinforcing national pride and patriotism.

We pay homage to the martyrs by placing floral wreaths at the National Mausoleum at Savar and by participating in rallies and processions.

On Independence Day, it is a national tradition to pay tribute to the martyrs who sacrificed their lives for the country's freedom in 1971. This homage is primarily offered at the National Mausoleum in Savar, where the President, Prime Minister, other leaders, and people from all walks of life place floral wreaths. This act signifies the nation's profound respect and gratitude for their supreme sacrifice. Additionally, various rallies and processions are organized throughout the day, reinforcing the remembrance and celebration of their heroic struggle.

From this passage, we become inspired by the profound significance of Independence Day as a commemoration of the heroic struggle and immense sacrifices made in 1971 to achieve our nation's freedom. The description of nationwide celebrations with great enthusiasm, the respectful homage paid to martyrs at the National Mausoleum, and the various cultural programs highlighting the historical struggle and sacrifice, all instill a deep sense of patriotism and gratitude towards those who fought for independence. This reminds us of the importance of unity and determination in safeguarding our hard-earned sovereignty.