Barisal Board 2024

Fill in the blanks with the words from the box. You may need to change the forms of some of the words. You may need to use one word more than once:

Dengue fever is (a) _______ tropical virus-infected disease. It is (b) _______ in more than 110 countries. It is (c) _______ by dengue virus. The fever is spread by (d) _______ Aedes mosquitoes. When the mosquito (e) _______ a man, the virus enters the blood cell, grows rapidly and attacks many (f) _______ of the body. There is (g) _______ specific medicine to treat dengue infection. So, we must put emphasis (h) _______ preventive measures. For this we must keep our surroundings clean to stop (i) _______ of Aedes mosquitoes. Again we must not (j) _______ to accumulate water in any open space for more than two days.

Fill in the blanks with suitable words :

Our forests are a part of our environment. To (a) — ecological balance, forests are necessary. But the amount of forests of the country (b) — being shrunk day by day. Some people remain (c) — with their personal benefits. They do not (d) — of the environment. Trees produce oxygen and (e) — the environment cool and prevent the rise of temperature. Whereas, some greedy people, out of their self-interest, (f) — the forests by cutting down trees at (g) —. They should know and realize that indiscriminate (h) — down of trees destroys the ecological balance. They should also realize that if this destruction (i) —, one day our country may turn into a desert. We hope that they will ultimately realize the (j) —.

Make five sentences using parts of sentences from each column of the table below:

Complete the following text with right forms of the verbs given in the box:

Rivers generally (a) _______ from a mountain or a lake. They (b) _______ very much important for our existence and economy. But unfortunately we are (c) _______ our rivers by throwing industrial and domestic wastes. Most of the industries (d) _______ waste treatment plants. These kinds of industries are (e) _______ liquid wastes and continuously (f) _______ the water. Our unconscious people also (g) _______ different kinds of waste materials into rivers. So, to keep the existence of fishes and other species (h) _______ in the water is impossible. It is high time the government and the people (i) _______ together to save the rivers. Otherwise a happy, prosperous and pollution free environment can't be (j) _______ for the next generation.