Hand Washing Day Program
Drug addiction and its result in society.
1. Despair and frustration amoung the youth.
2. Curiosity and excitement through use.
3. Some patients are addicts because they try to follow the western culture of drugs and enjoyment of life.
1. Without drugs the addict loses his mental and physical abilities to work and enjoy life which is termed as psychological dependence and physical dependence.
2. The addict develops a craving for the drug, and he spends all his efforts procuring it.
3. Drug tolerance in users leads to increased dosage of drugs needed to provide the same degree of enjoyment and kick
The dengers and destruction caused by drugs:
Drug addiction beings on rapid erosion of educatinal and cultural, moral and family values. The addicts lose their professional and educational capabilities, self dignity and get involved in serious or pitty criminal activities. The sole aim of an addict becomes the procurement and use of drugs. Other aims and objectives in life are thrown by the roadside. Besides, dread diseases such as Hepatitis, HIV/AIDS can easily attack drug addicts through use of injectible drugs. Intravenous injection of pethidine/ morphine and now tadigesic brand of riknomar penic. These are extremely dangerous drugs and increases addiction manifold. Injections through infected needles can cause diseases of the liver, brain, heart, lungs and spinal cord. Normal medication also interacts with heroin and cause many complications, which many addicts do not know about. Such interactions may also cause death.
Words of Caution for the Parents
Children are the beloved of the parents. Suspicions of one's child engaged in immoral and criminal activities are a source of the utmost heartache for the parents. Yet for this very reason, children must be kept under close observation. Behavioral and emotional changes are common in the adolescent and young men. But long-standing changes and rapid shifts in mood needs specialist doctor's attention and investigation. Heroin addicts live in a dream world, unconnected with realism and the environment around them. They lose concentration, live alone, and are irritated by interference and contact with non-addicts or other addicts.
If you come to know that your son or daughter is a heroin addict, do not lose calm and temper. Try to take stock of the situation and seek medical attention immediately, without trying to forcibly rid your children of the habit.
Searching food, man's first occupation.
International Workers Day
Polar Ice cap
Pollution
SOUND POLLUTION
The unit by which the loudness is measured is called a decibel. According to the United Nations (UN), the normal tolerance limit of sound is 45 decibels. When the vibration of sound is at a tolerable, pleasant level, it is simply called sound. But when it is sharp and harsh to the ears it becomes noise. Serious harm can be caused to people if they regularly exposed to sounds exceeding 70 decibels. Because of the growth of urban population and the increasing use of machines in our every day life there had been a general increase in the level of sound around us. On an average, people in the cities are exposed to sound ranging from 30 to 90 decibels or even more. A study in Japan has found that housewives who live in the city were exposed to almost the same amount of sound that a factory worker was exposed to at his/her workplace. The occupations that the study found to be the noisiest were factory work, truck driving and primary school teaching.
Many developed countries are trying to control sound pollution by careful town planning and developing public awareness. In Holland, schools are not allowed near airport and houses which are situated near airports are provided with special types of insulation to limit the sound heard inside the buildings.
ULTRAVIOLET RAY
First use of metal
Mount Everest
The Taj Mahal
The Temple of Artemis
Elements of the natural environment.
Domestic rubbish, a threat for environment.
Climate change and global warming.
MIGRATORY BIRDS IN BANGLADESH
The history of migration began as soon as human was created. The reason was easy- collecting food from the nature .Moreover, finding a safe place to protect themselves from natural disasters and wild animals encouraged to migrate. Every year, with the arrival of winter migratory birds of various species throng some parts of Bangladesh. Jahangirnagar University, Hakaluki Haor and Hyle Haor Tangoar Beels, Nijhum Dwip, Chitagong Hill tracks, Mirpur Zoo, Mirpur ceramic lake, Netrokona Haor and many small as well as large lakes are some of the get together place of migratory birds. Most of the birds come from the mountainous northern parts of the subcontinent namely Himalayas and beyond. Some species come from different parts of Europe and as Far East as Siberia.
Thousands of hundreds types of duck visit every year along with the native birds. Lesser Whistling Teal (Chhota Sarali),Greater Whistling Teal ( Bara Sarali), Cotton pigmy Goose (Balihansh), Pochard(Bhulihansh), Darters (Snake bird), Pintail Duck, Gurgani etc are some of the birds. However, the migratory birds in Bangladesh is decreasing every year due to the scarcity of wetlands and poaching. As the population is increasing and forests and wetlands are decreasing, we are loosing the beauty of nature. The poachers who trap and sell migratory birds also causes threaten to the ‘Guests; animals are part of the world. Like humans, they breed, grow up, travel thousands of miles for searching food. They also need a peaceful living place. Only human can save the animals from extinction. Birds and animals are the source of entertainment for the residents of the urban people. Sometimes these migratory animals threaten human society by spreading diseases like bird flu. However, this can be controlled by taking proper action. Steps should be taken to increase the arrival of migratory animals and to protect from extinction. Otherwise, we have no place to be entertained naturally.
ANIMAL MIGRATION:JOURNEY TO THE UNKNOWN.
Animal also migrate from one place to another, like the humans, and this migration is more rapid than the humans. Some animals like wild beast and sooty Shearwater traveled the world from their birth to death, thousands of miles every year. This traveling may cross the boundary or not , they dare about this , but is the only way to keep themselves alive in the world. Human migrates once, twice or more, but animals , like Pacific salmons, pass their life with migration . Some specifies of pacific salmon born in freshwater streams , travel to ocean waters and then return to breed before dying.
Almost all animal migrate from one place to another for searching foods but some of them traveled long distances. Wildebeests, elephants, Reindeer , Zebra and Caribou are some animals that traveled regularly.
Fishes like various species of shark and whale, dolphins , hundreds of miles every year. Birds , mostly known as migratory birds , are large among the migrates. About thousand types of birds travel the world every year . Various types of goose like great crested grebe, widgeon, egret , large egret, heron, night heron, snipe etc. as well as fruit bat , nightingale, humming bird, cockatoo are mentionable.
REASONS OF MIGRATION
Plant eating mammals like buffalo and antelope; typically graze in herds, which can deplete the grass in an area. These animals instead of waiting for grass, go a short distance to find new grass, circling back to the original area when grass is abundant again. But in winter, grass does not regrow, so the herds move back to the areas where they found good the previous season. During the climatic changes like drought , water holes draw both the predators and prey, making these areas both overcrowded and dangerous in Africa, wildebeests, zebra and other prey species therefore migrate to areas where water is more plentiful. Bear the young in places relatively safe from predators and rich in resources, a more important reason of migration, also encourage the animals. For instance some right whales leave their Antarctic feeding grounds where their primary food resource is plentiful. They travel to bear their young.
Green turtle, another reproductive migrant, swim from their feeding grounds off the coast of Brazil during the time of lying eggs. After long swim, about 2000 km, they haul themselves onto sandy beaches, scrape out shallow nests, and deposit their eggs. Like the green turtles, freshwater eels trace ancient migratory patterns, swimming from each side of the Atlantic to the weedy Sargasso Sea and return after breeding.
Navigation of migration
In shorter migration, animals do not need complicated navigation abilities. They can simply follow the food or the water, or head downhill to the valleys in winter and back up toward the ridges in summer. In longer migration, according to the scientists, animals use senses and sun, stars and geographic features. For instance, Starlings orient themselves using the sun, compensating for how the sun moves across the sky throughout the day. Mallard ducks can find north using the stars of the night sky. On the other hand, loggerhead turtles have the ability to sense the direction and strength of Earth magnetic field, which they use for navigating along the turtles ‘regular migration route. Animals can also use mental maps like human beings. They just become familiar with an area and navigate using mountain ranges, coastlines, rivers and even, like dolphins, the shape of the sea floor. Smell is also a powerful tool for navigation. Salmon uses smell to find the exact stream that they were born.
Migratory birds are believed to use the stars, sun and other geographic features as guides. Night migrating birds are sometimes disoriented in prolonged heavy fog. Day- flying birds navigate by the sun and also make some use of geographic features , particularly of shorelines, most migratory birds travel within broad north-south air routes known as flyways. Some migratory bird’s winter only a few hundred miles from their breeding grounds, while other migrate between the cold or temperate zones of the two hemispheres. The longest journey is made by the Arctic tern, a small bird that flies from the Arctic to the Antarctic and back again each year.
Hazards of migration:
Humans also posed particular dangers to migrating animals. For instance, the caribou of arctic regions are hunted by Inuit who intercept hers along seasonal migration routes. Sport hunters acquaint themselves with migration routes as well.
Human made structures like skyscrapers and radio towers have caused the deaths of hundreds of migrating birds. Water pollution has caused the fishes not to migrate to some specific areas.
What Causes the Greenhouse Effect
About Bangladesh
Here I give detaile information about Bangladesh in the below:-
Name:People's Republic of Bangladesh
Bangali Name:Gonoprojatontri Bangladesh
Border:It is bordered by India on Three sides except for a small border with Burma (Myanmar) to the far southeast,and by the Bay of Bengal to the south.
Area: Total:147,570 km2 (94th),55,599 sq mi
Water : (%)7.0
National Anthem: Amar Shonar Bangla (My Golden Bengal)
Capital (and largest city):Dhaka, 23°42′N 90°21′E / 23.7, 90.35
Official languages:Bengali (or Bangla)
Demonym:Bangladeshi
Government:Parliamentary republic
President:Jillur Rahman
Independence:from Pakistan
Declared:March 26, 1971
Victory Day:December 16, 1971
Population
2007 estimate:150,448,340 (7th)
Density:1045/km2 (11th) 2,706/sq mi
GDP: (PPP)2007 estimate Total:$208.456 billion[3] (48th)
Per capita:$1,311[3] (153rd)
GDP (nominal):2007 estimat Total:$73.689 billion[3] (58th)
Per capita:$463 (157th)
Currency:Taka (BDT)
Time zone:BDT (UTC+6)
Drives: on the left
Internet TLD.bd
Calling code:880
National Animal:Royal Bengal Tiger
National Fish:Hilsa
National Flower:White Water Lily
National Fruit :Jackfruit
National Sport :Kabadi
National Calendar:Bengali calenda