What is the main barrier to the economic development of Bangladesh caused by natural disasters?
- aLoss of foreign currency
- bIrreparable loss of lives and properties
- cDecrease in tourism
- dLack of skilled manpower
201 questions · 18 sections
What is the main barrier to the economic development of Bangladesh caused by natural disasters?
Bangladesh is a land of how many seasons?
Heavy rainfall now occurs in which month, causing untimely flood?
Which months traditionally make up the rainy season in Bangladesh?
According to the chapter, summer temperature in some parts of Bangladesh can reach up to what range?
Which of the following effects on seasonal cycle is noted in the chapter?
Which of the following years are mentioned for catastrophic floods in Bangladesh?
Why is annual flood considered beneficial in many cases?
Which areas, usually not flood-prone, are now being inundated?
In the last three decades, approximately how much land has been engulfed by the Padma, the Jamuna and the Meghna combined?
Which three rivers are responsible for engulfing 180,000 hectares of land in last three decades?
What is the main reason behind climate change?
About how many hectares of land in south-western Bangladesh has already become unsuitable for cultivation due to salinity?
By 2100, what percent of food production is expected to be reduced due to climate change?
By 2050, what percent of rice production will be reduced due to climate change?
By 2050, what percent of wheat production will be reduced due to climate change?
In Bagerhat, Khulna and Sathkhira, agricultural land affected by saline water could reach what percentage by 2100?
What is the suitable temperature range for sea coral survival?
By 2010, approximately what percent of coral population in Saint Martin Island has been depleted compared to 1960?
Besides temperature rise, what other factor is responsible for coral depletion in Saint Martin?
Which is the only mangrove forest in Bangladesh?
Recent cyclone that damaged a large part of the Sundarbans was —
If sea level rises by 45 cm, what percent of the Sundarbans will submerge?
If sea level rises by how many centimeters, the entire Sundarbans will be lost?
Many fish species and fries cannot survive if water temperature exceeds —
At what temperature does growth of pathogenic bacteria in water get favoured, causing fish epidemics?
Which water-borne diseases spread due to flood and cyclones?
In which districts of Bangladesh has anthrax recently spread?
According to veterinarians, anthrax-infected animals —
About what percent of biodiversity will be lost in Bangladesh due to climate change?
Consider the following effects of climate change in Bangladesh:
Why is fresh water fish unable to survive in southern coastal Bangladesh?
IPCC stands for —
IPCC's fourth evaluation report is known as —
In the last 100 years, the average global temperature has increased approximately by —
During 1961-2003, sea level has risen at the rate of —
According to AR4, in the next two decades atmospheric temperature may increase by —
By 2100, average global temperature may rise by —
By 2080, sea level may rise by —
Parts of which countries have already been submerged in water?
Which of the following is NOT a recent intensified natural disaster mentioned globally?
According to AR4, the availability of water will decrease in —
Which is the most important environmental problem?
The current world population is approximately —
By 2050, the world population will reach approximately —
After 1950, about what percent of forest was lost due to increase in population?
Bangladesh is the largest fish-producing country in the world ranked —
Total food production in Bangladesh in 2010-11 was about —
Bangladesh has to import how much food grain every year?
Population of Bangladesh in 1991-92 was about —
Current population of Bangladesh is more than —
Population increase basically depends on —
Which two factors other than birth and death rate control population growth?
Expatriation results in —
The prime cause of population growth in Bangladesh is —
Consider the following statements about environmental problems:
Which of the following is NOT a Green House Gas?
Which of the following is a Green House Gas?
Consider the following greenhouse gases:
Which is NOT a main source of GHGs?
Which natural event is responsible for releasing GHGs?
Why does the amount of increase in atmosphere due to deforestation?
Carbon pollution basically means —
Which year's flood in Bangladesh resulted in a famine?
Which of the following is a cause of flood?
Why does sediment deposit in river beds?
Since 1960, how much flood control embankment has been built in Bangladesh?
Which is an example of river training?
Consider the following methods of flood prevention:
How many rivers are there in Bangladesh including the Ganges, Brahmaputra and Meghna?
Bangladesh's major rivers originate in —
To minimize flood damage, where should human settlement be stopped?
What can be a great help during flood when roads are inundated?
Drought occurs when moisture in soil reduces to —
In England, absolute drought is defined as rainfall less than 0.25 mm for —
In England, partial drought condition is when rainfall is not higher than 0.25 mm for —
In Russia, a period of how many days with total rainfall not exceeding 5 mm is considered drought?
In the USA, drought is defined as not at least how much rain daily for 30 consecutive days?
A devastating drought occurred in Bangladesh in —
Which is NOT a north-western district of Bangladesh vulnerable to drought?
Which of these is mentioned as a drought-vulnerable district?
Recently, what is being considered responsible for drought in Bangladesh, created in East Pacific Ocean?
Consider the following causes of drought:
Which crops can grow in soil containing low moisture, suitable for drought areas?
Which crop requires huge amount of water and should be discouraged in drought areas?
The word 'cyclone' came from the Greek word "Kyklos" which means —
In which region is cyclone known as 'Hurricane'?
In Far East, cyclone is known as —
Since 1960, about how many cyclones have hit Bangladesh?
The most devastating cyclone in Bangladesh occurred in which year, with 5 lacs deaths recorded?
In the cyclone of 1991, approximately how many people lost their lives?
Cyclones Aila and Sidr struck Bangladesh in which years respectively?
In cyclones Aila and Sidr, deaths recorded were —
Economic loss in cyclones Aila and Sidr was about —
Cyclone Amphan struck Bangladesh in the year —
Cyclone Remal struck Bangladesh in the year —
For the formation of cyclone, the required ocean temperature is more than —
Wind velocity for a depression to be considered as cyclone is —
The strongest cyclone that ever hit Bangladesh was in 1991 with wind velocity of —
Consider the following reasons for cyclone formation:
Which chemical sprayed in the USA reduces wind speed of cyclone?
To prevent water surge during cyclone, what must be constructed?
About how many volunteers work under the cyclone preparation programs of Bangladesh Govt. and Red Crescent Society?
In 2017, which cyclone hit Bangladesh with only seven deaths reported?
Nor'wester (Kalboishakhi) usually occurs in which months?
In a nor'wester, wind velocity ranges from —
If wind velocity of a storm exceeds how much, it is called tornado?
The word "Tornado" originated from a Spanish word "Tornada" meaning —
Wind speed in case of tornado is generally —
The width and length of a tornado are typically —
Basic difference between cyclone and tornado is that cyclone forms in —
A devastating tornado hit Bangladesh in 1989 in —
In Bangladesh, tornado is also called —
Since 1975, about how many tornadoes have hit Bangladesh?
The most disastrous tornado in Bangladesh attacked Demra thana in Dhaka in 1969 with wind speed of —
The word "Tsunami" is a Japanese word where "Tsu" means —
In the word "Tsunami", "nami" means —
Tsunami is considered the —
Tsunami can be caused by —
The speed of tsunami wave can be in the range of —
In open sea, the height of a tsunami wave could be up to —
As tsunami approaches the coast, the high tidal wave could be as high as —
The distance from one end to another end of a tsunami wave could be as long as —
The most disastrous tsunami in history hit on —
The 2004 tsunami's epicenter was near which island?
The 2004 tsunami earthquake magnitude was —
The 2004 tsunami earthquake was caused by collision between —
A length of how many miles at the bottom of the sea was cracked in 2004 tsunami earthquake?
About how many people died globally due to the 2004 tsunami?
About how many people died in Acheh Province of Indonesia due to 2004 tsunami?
Radiation emitted in the 2004 tsunami earthquake was as powerful as how many million bombs?
Why was Bangladesh's damage from 2004 tsunami negligible?
Bangladesh was attacked by a tsunami in —
The 1762 tsunami in Bangladesh originated at —
In 1762 tsunami, water level rose abruptly in which river?
Consider the following statements about the 2004 tsunami:
Generally, rain water is —
Which acid is present in higher proportion in acid rain?
Which acid is present in smaller quantity in acid rain?
Which plant nutrients are removed from soil by acid rain?
If pH of water becomes less than 5, most of the fish eggs are —
Which diseases in humans are caused by acid rain?
Consider the following natural events responsible for acid rain:
Which gases react with oxygen and water to form acid rain?
Which industries are major man-made sources of acid-forming gases?
To control acid rain damage to soil, which substance is used to adjust pH?
Acid rain frequently occurs in which countries?
The magnitude of earthquake is measured by —
Humans can feel earthquakes of magnitude more than —
An increase of 1.0 magnitude in Richter scale means a rise of intensity by —
The earth's crust is divided into layers called —
Due to earthquake, which river in Bangladesh has changed its course?
In 1884, a major earthquake of magnitude 7.0 occurred in —
In 1897, a major earthquake of magnitude 8.7 occurred in —
Which two regions of the world are identified as earthquake-prone?
Which earthquake led to a nuclear accident in a power plant?
In 2010, magnitude 7.0 earthquake in Haiti killed about —
In 2014, magnitude 8.2 earthquake in Chile killed only —
The Chile earthquake of 2014 was how many times stronger than the Haiti earthquake of 2010?
Why did so few people die in the 2014 Chile earthquake despite higher magnitude?
Which is a precaution to be taken BEFORE an earthquake?
During an earthquake, if you are indoors you should —
During an earthquake, why should matches never be used?
After an earthquake, what should you avoid using to prevent network congestion?
If you live by the sea-shore after an earthquake, you should —
If trapped inside a damaged building after an earthquake, you should —
Consider the following precautions during an earthquake:
A major earthquake may be followed by —
How long can a human survive without air or oxygen?
Which of the following pollutants is mentioned to cause lung cancer and heart attack?
If river water is polluted, the most affected are —
Conservation of nature means —
Which is NOT a natural resource mentioned in the chapter?
According to the chapter, what was the natural condition of the moon long ago?
Which is NOT a strategy for conservation of nature?
The program 'paperless office' has been launched to —
Paper is made from —
Which river is mentioned as severely polluted with hardly any aquatic fauna?
How many cities of Bangladesh are in the global list of 100 cities remarkable for air pollution?
Which is an example of recycling in Bangladeshi culture?
Old radials can be recycled to manufacture —
Consider the following strategies for conservation of nature:
The best way to conserve nature is to —
Organic manure can be prepared from —
Which of the following disasters occurs only in the sea?
Cause of increasing Green House Gases:
Which gas is not emitted from a brick-field industry?
To prevent acid rain caused by gases emitted from the brick-field industry, what should be done?
What is cyclone?
Nawshad Mia lives in a coastal district and faced a strong storm at night. The disaster mentioned is created mainly due to —
To save himself from cyclone, Nawshad Mia should have —
Elora witnessed a harsh, dry weather and shaking of bed and ceiling fan at night. The two disasters together suggest —
The most effective way to deal with drought (as witnessed by Elora) is to —
To stay safe from earthquake (as witnessed by Elora), people should —
Why is crop production better after a flood?
Why is rising temperature risky for marine corals?
If pH of water falls below 5, what is the impact on fish production?
Why is Bangladesh a cyclone-prone country?
Which resources can be preserved by reducing their usage in daily life?