The Dhaka Times Desk In the last 20 years, the color of seas has changed over a large area of the world. By this time the color of the sea has changed from blue to green! Scientists believe that this has happened due to global warming and climate change.
Due to the shadow of the sky falling on the sea, its color appears blue. But in a recent study published in the journal Nature, scientists say that despite the blue shade of the sky, more than half of the oceans have a greenish tint, which is larger than the total land area of the Earth. This means that something is happening in the ocean water that is causing this change. - CNN's news.
'The change in the color of the sea means a change in the life cycle or ecosystem there. Plankton is at the bottom of the food chain of marine animals. If there is a change in the color of the water due to the growth of plankton then it has some positive aspects' - BB Kael, head of the research team.
Although so many things happen in the sea, it is difficult to understand with the naked eye. That's why scientists confirmed this by analyzing the pictures taken by MODIS Aqua satellite at different times from 2002-2022.
Bibi Kael, the head of the research team said, "This did not happen overnight, since 2002, the color of the sea has changed little by little. It is also closely related to global warming.
However, Bibi Kael also said that there is no chance to be optimistic about this. According to him, there is no room to be too optimistic in this regard. The reason is that there are many marine animals that are very sensitive to temperature. They may even disappear forever if global temperatures rise.
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How to prevent dengue
Dengue is a mosquito-borne viral fever. This fever is different from other viral or bacterial fevers. However, this fever is not contagious in any way. This viral fever can occur alone or in combination with other viruses (chikungunya, yellow fever, Burma forest, flu, respiratory syncytial) and bacteria (pneumococcus).
Dengue fever is divided into two categories depending on the severity of symptoms and fever.
1. Common dengue fever
2. Dengue fever with bleeding.
In the case of common dengue fever, the following symptoms are mainly seen-
1. Sudden high fever lasting 2 to 7 days.
2. Severe headache.
3. Pain behind the eyes.
4. Along with the fever, red rash appears all over the body.
5. Severe pain in whole body as well as back pain.
6. Nausea or vomiting.
7. A rash or red bumps on the skin.
In case of dengue fever with bleeding:
1. Bleeding from nose, mouth or vomiting with high fever within 2 to 48 hours.
2. Fluid accumulation in chest or abdomen along with fever.
If any of these symptoms appear, seek medical attention immediately.
On the other hand
Wait at home for the first 3 days of fever. On the other hand, sponge the whole body with water every now and then. This will reduce the level of fever. Drink enough water and rest. After that, if the fever does not decrease or if it continues to increase after some time, consult a doctor immediately.
Things to do to prevent Dengue:
1. Try to keep the surroundings of the house as clean as possible.
2. If there are flower tubs or broken plastic bottles, can shells, tires or polythene inside the house, clean them quickly and drain the accumulated water from the flower tubs.
3. Spray or fog at least 3 times a week to kill mosquitoes.
4. You can keep mosquito repellent cream with you while going out.
5. After evening, younger and older members of the household should use mosquito nets.
6. Clean up any accumulated rain water, as this is the time when Aedes mosquitoes lay their eggs.
7. On the other hand, you can use mats along with mosquito nets to avoid mosquito infestation.
8. Since Aedes mosquitoes bite during the day, it is important to avoid sleeping with mosquito nets while sleeping during the day. Source: https://dmpnews.org
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