Thursday, May 29, 2014

IMO Team 2014

55th International Mathematics Olympiad (IMO 2014) is going to be held in Cape Town, South Africa from 3rd to 13th July, 2014. Bangladesh team has been announced. 6 Math-whiz are going to represent team Bangladesh in the most prestigious Mathematics competition for the high school students all over the world.

Among them two participated in the International Mathematics Olympiad last year. And two of them grabbed Bronze Medal for the country. Hope this year all of the members will be able to bring glory for the country like last year. Bangladesh Team Members are:

1. Nur Muhammad Shafiullah.
2. Adib Hasan.
3. Sazid Akhter Turjo.
4. Md Sanzeed Anwar.
5. Asif E Elahi.
6. Mutasim Mim.

The IMO is a problem-solving contest for high school students, held in a different country in July every year. The first IMO was held in Romania in 1959, with seven countries taking part. Today, more than 100 countries take part, representing over 90% of the world's population.
The 2014 IMO will take place at the University of Cape Town.

Best wishes for the Team Bangladesh.

Thursday, May 22, 2014

International Chemistry Online Olympiad 2014

International Chemistry Online Olympiad is going to take place on 15th June, 2014. Teams of 5 members from each country will participate as individuals and the country with the highest cumulative individuals score will win. Prizes will be given to individuals with the best performances. The contest will consist of 20 problems to be solved by two weeks. All contestants have to submit the solutions by June 29. 

For Registration, Check the website.
For Past Papers, Check here

International Physics Online Olympiad 2014

International Physics Online Olympiad is going to take place on 29th June, 2014. Teams of 5 members from each country will participate as individuals and the country with the highest cumulative individuals score will win. Prizes will be given to individuals with the best performances. The contest will consist of 20 problems to be solved by two weeks.

For Registration, Check the website.
For Past Papers, Check here

Wednesday, May 21, 2014

NEO Preparation VI

Geologic Time
221. Fossils are most common in which rock types?
a. Sedimentary
b. Igneous
c. Metamorphic
d. All of these commonly contain fossils

222. A disconformity is ___________ .
a. Rock unit that does not contain fossils
b. An erosional surface between igneous and metamorphic rocks
c. An erosional surface between horizontal sedimentary rocks
d. An erosional surface between different rock types

223. Which of the following is used by geologists to determine the relative ages in a rock sequence?
a. Stratigraphy
b. Fossils
c. Cross-cutting relationships
d. All of these

224. Which of the following will not make a fossil?
a. Decomposed organic material
b. Plant impressions (casts)
c. Animal footprints
d. Loose animal bones

225. Most periods in the geologic time scale are named for _______.
a. Geographic localities
b. Fossils
c. Catastrophic events
d. Paleontologists

226. What scientific avenue of investigation gave scientists the best estimate of the age of the Earth?
a. Dating fossils
b. Archaeological dating
c. Radiometric dating
d. Carbon dating

227. Human beings evolved during which geologic era?
a. Cenozoic
b. Mesozoic
c. Paleozoic
d. Precambrian

228. Approximately how long ago did the Big Bang take place?
a. 10-15 thousand years ago
b. 10-15 million years ago
c. 100-150 million years ago
d. 10-15 billion years ago

229. the branch of geology that focuses on the study of fossils is_______
a. Paleotology
b. Fossilography
c. Taxonomy
d. Taphonomy

230. This era accommodated the development and growth of invertebrates
a. Paleozoic era
b. Cenozoic era
c. Mesozoic era
d. Jurassic period

NEO Preparation V


201. Solar radiation reaches the earth's surface as?
A.       Visible radiation only
B.       Ultraviolet radiation only
C.       Infrared radiation only
D.       Ultraviolet, visible, and infrared radiation

202. Electromagnetic radiation with wavelengths between 0.4 and 0.7 micrometers is called?
A.       Ultraviolet light
B.       Visible light
C.       Infrared light
D.       Microwaves

203. The blueness of the sky is mainly due to?
A.       The scattering of sunlight by air molecules
B.       The presence of water vapor
C.       Absorption of blue light by the air
D.       Emission of blue light by the atmosphere

204. If the average temperature of the sun increased, the wavelength of peak solar emission would?
A.       Shift to a shorter wavelength
B.       Shift to a longer wavelength
C.       Remain the same
D.       Impossible to tell from given information

205. The proper order from shortest to longest wavelength is:
A.       Visible, infrared, ultraviolet
B.       Infrared, visible, ultraviolet
C.       Ultraviolet, visible, infrared
D.       Visible, ultraviolet, infrared

206. Warming in the stratosphere is mainly caused by?
A.     Absorption of ultraviolet radiation by ozone
B.     Release of latent heat energy during condensation
C.     Chemical reactions between ozone and chlorofluorocarbons
D.     Frictional heating caused by meteorites

207. In a temperature inversion:
A.       Air temperature increases with increasing height
B.       Air temperature decreases with increasing height
C.       Air temperature remains constant with increasing height
D.       It is warmer at night than during the day

Sunday, May 18, 2014

IOI Team 2014

26th International Olympiad in Informatics (IOI 2014) is going to be held in Taipei, Taiwan from 13th to 20th of July. Bangladesh team has been announced. 4 students are going to represent team Bangladesh in the most prestigious programming competition for secondary school students. 

Team Bangladesh

1. Tonmoy Mollik.
2. Bristy Sikder.
3. Labib Rashid.
4. Hasib Al Muhaimin.

The first IOI was held in 1989 in Bulgaria. The contest consists of two days computer programming, solving problems of an algorithmic nature. Students compete on an individual basis, with up to four students competing from each participating country.

Wednesday, May 14, 2014

APIO 2014

Bangladesh has secured 4 Bronze Medals in the Asian Pacific Informatics Olympiad 2014. 

Award Winners

1. Hasib Al Muhaimin – Bronze Medal.
2. Tonmoy Mollik – Bronze Medal.
3. Bristy Sikder – Bronze Medal. 
4. Labib Md. Rashid – Bronze Medal.

Check Out APIO OFFICIAL WEBSITE for details. 

APMO 2014

Bangladesh has secured 2 Bronze Medals and 3 Honorable Mentions in the Asian Pacific Mathematics Olympiad 2014. The overall position of Bangladesh is 19th,  out of 36 participating countries.

Award Winners

1. Nur Muhammad Shafiullah – Bronze Medal.
2. Adib Hasan – Bronze Medal.
3. Asif-E-Elahi – Honorable Mention.
4. Sowmitra Das – Honorable Mention.
5. Sazid Akhter Turzo - Honorable Mention.

The Asian Pacific Mathematics Olympiad (APMO) started from 1989, is a regional mathematics competition which involves countries from the Asian Pacific region. Every year, APMO is held in the morning of the second Tuesday of March for participating countries on the Western Pacific and in Asia.

The APMO contest consists of one four-hour paper consisting of five questions of varying difficulty and each having a maximum score of 7 points. Contestants should not have formally enrolled at a university (or equivalent post-secondary institution) and they must be younger than 20 years of age on the 1st July of the year of the contest.


Tuesday, May 13, 2014

Environment Olympiad 2014

The Environment Club of University of Dhaka is going to organize the 'Environment Olympiad 2014'

Event Schedule
Online Registration: 29th April to 15th May
Payment Registration: 16th May to 25th May
Orientation Program: 29th May
Olympiad Exam: 8th June

Participant Eligibility
Students currently studying in 9-12 are eligible to participate in this Olympiad. Besides, Students who have completed their HSC/A-Level but haven't enrolled in any university yet can participate.

Registration Process
Registration will run in 2 phases.

Phase 1- Online Registration 
Participants have to complete their online registration first. Registration link will be available from 29th to 15th May 2014.

Phase 2- Payment Registration 
Once the online registration is done, the payment registration will begin. The payment needs to be done by bKash and the details of the payment procedures will be disclosed as soon as the online phase is over. The payment details will be mailed and will be sent by text to the participants.

Exam Pattern
The questions will be simple Multiple Choice Questions (MCQ) with 4 options.

Preparations & Study Materials

Different topics relating to Climate change and Sea-Level rise.

Nabab Nawab Ali Chowdhury Senate Bhaban, University of Dhaka

For Details and Registration, Check Facebook Event Link

Saturday, May 10, 2014

NEO Preparation III

Environmental Science

72. Many individuals of the same species living together in a defined area form a/an

A. Community
B. Ecosystem
C. Genus
D. Population

73. Which of the following is characteristic of parasitism?

A. One organism lives in or on another and benefits. 
B. Two organisms nourish each other; both benefit.
C. One organism kills and consumes another.
D. Two organisms live together and neither is harmed.

74. The sequence of energy flow through a food chain is 

A. primary consumers‑ producers‑ higher order consumers.
B. producers‑ higher order consumers‑ primary consumers.
C. producers‑ primary consumers‑ higher order consumers. 
D. primary consumers‑ higher order consumers‑ producers.

75.  The two compounds that acid rain contains that are most damaging to the environment are ____________ and ____________.

A. nitrogen; water
B. carbon dioxide; sulfuric acid
C. sulfur dioxide; nitrogen oxides
D. carbon dioxide; water

76. The only gas in the atmosphere that can absorb the sun's dangerous ultraviolet radiation is ____.

A. nitrogen
B. ozone
C. nitrous oxide
D. carbon dioxide

77. The largest amount of usable water found on earth is used for ___.

A. household use
B. crop irrigation
C. recreation
D. industrial uses

78. Which of the following are producers?

A. termites
B. bacteria
C. algae
D. all of the above

79. What is happening to the amount of carbon dioxide in the atmosphere?

A. it is increasing
B. it is decreasing
C. it is steady
D. it is fluctuating

80.  The major reservoir for phosphorus is

A. aquifers
B. clouds
C. the atmosphere
D. soil and rocks 

81. Precipitation is usually expressed in which of the following units?

A. ml    
B. g/m²   
C. mm    

82.  Which of the following is not a method of estimating river discharge?

A. Dilution Gauging  
B. Atmometer readings  
C. Rating Curve  
D.Velocity-Area Method

83. Which of the following does not apply to infiltration excess overland flow?

A. Common in semi-arid areas where soil surface crusts develop
B. Rare in areas subject to extreme rainfall events
C. Common where the surface is often frozen
D.Rare in many temperature areas because infiltration capacity is too high

84.  Which of the following is not one of the major paths for water entering the soil?

A. Percolates into bedrock 
B. Infiltration-excess overland flow
C. C. Taken up by plants and   transpired   
D.Travels laterally through the soil

85.  What does a 'hydrograph' display?

A. Variations in water temperature against discharge 
B. Variations in river discharge over time
C. Variations in sediment concentration against river discharge
D.Variations in snowfall over time

86. Which of the following statements is not correct with respect to river flow in dry land environments?

A. Dry lands are characterized by rare but intense rainfall events
B. Most of the water is stored above ground to maintain base flow until the next flood event
C. Coarse and sandy soil often results in high infiltration capacities 
D.The intense nature of rainfall events causes rapid runoff and high flood peaks

87. Which of the following is the most likely impact of deforestation and increased grazing intensity?

A. Increased infiltration capacity and greater base flow contribution
B. Reduced infiltration capacity and greater infiltration-excess overland flow generation
C. Reduced annual river flow
D.Increased precipitation input

88. In the context of river flows in glacial regions, which of the following is not correct?

A. Large snow/ice melt input in early winter causes high flood potential
B. Discharge can be extremely low over winter
C. Outputs in the water budget often do not equal inputs due to a large amount of long term           water storage
D.Discharge is lower at night than during the daytime

89. In which of the following through flow pathways does water travel through the finest soil pores?

A. Stomatal pore flow
B. Matrix flow
C. Pipe flow
D.Macropre flow

90. Approximately what percentage of the earth's surface is covered by oceans?

A. 10%  
B. 35%  
C. 71%  

91.  Rising levels of atmospheric carbon dioxide will cause which of the following changes in oceanic chemistry?

A. Increased salinity 
B. Decreased pH
C. Decreased salinity
D.Increased precipitation of calcium carbonate

92. Which two features together control the density of seawater?

A. Salinity and depth
B. Temperature and sea depth
C. Temperature and salinity
D.Salinity and plankton concentration

93. Surface ocean currents are driven mainly by which of the following?

A. Salinity gradients
B. Prevailing winds
C. Temperature gradients
D.Warm Air

94. Deep ocean currents are driven mainly by which of the following?

A. Prevailing winds
B. Temperature and salinity gradients
C. Mid-ocean ridge volcanism
D.Earth’s rotation

95. Which of the following reservoir contains the most water?

A. Atmosphere  
B. Biosphere
C. Groundwater   
D.Lake and Rivers

96.  The main parts of the water cycle are evapotranspiration, precipitation, and

A. Evaporation
B. Condensation
C. Runoff

97.  Condensation is a change in water from a

A. Solid to liquid
B. Liquid to solid
C. Gas to liquid
D.Liquid to gas

98. All the sediment carried by a river is called the

A. suspended load
B. bed load
C. stream load
D.dissolved load

99.  An aquifer contains a great deal of water, but the water cannot be removed easily with an ordinary well. This is most likely due to sediment and rock characterized by

A. low porosity
B. low permeability
C. poor sorting
D.high iron content

100. The water table forms the upper surface of the

A. cap rock layer
B. contour surface
C. zone of saturation

D.artesian formation

NEO Preparation II


41. The primary source of energy for the earth's atmosphere?
A. Energy from within the earth
B. The sun
C. Erupting volcanoes
D. Lightning discharges associated with thunderstorms

42. The most abundant gases in the earth's atmosphere by volume are:
A. Carbon dioxide and nitrogen
B. Oxygen and water vapor
C. Nitrogen and oxygen
D. Oxygen and helium

43. Water vapor is:
A. A gas
B. A cloud droplet
C. A rain drop
D. A snowflake

44. Which of the following is considered a variable gas in the earth's atmosphere?
A. Water vapor
B. Nitrogen
C. Oxygen
D. Argon

45. The gas that shows the most variation from place to place and from time to time in the lower atmosphere:
A. Ozone (O3)
B. Carbon dioxide (CO2)
C. Water vapor (H2O)
D. Methane (CH4)