ATMOSPHERE
a) Lithosphere.
b) Stratosphere.
c) Troposphere.
d) Biosphere.
2. When traveling by air, your airplane flies through this zone of atmosphere:
1. Which is the innermost layer of
atmosphere?
b) Stratosphere.
c) Troposphere.
d) Biosphere.
2. When traveling by air, your airplane flies through this zone of atmosphere:
a) Higher part of the
Troposphere not beyond.
b) Mainly the lower part of the Stratosphere.
c) Lower part of the Mesosphere.
d) None of the above.
3. Ozone molecules useful in
blocking UV rays of the sun are dispersed at this altitude from the surface of
earth:
a) Only near the surface.
b) From surface to 11 Kms.
c) From 11 Kms to 30 Kms.
d) From 31 to 50 Kms.
4. The temperature in the
Stratosphere increases with height as compared to Troposphere because:
a). Both contain Ozone but concentration of
ozone is higher in Stratosphere than in Troposphere
b)
Sun is closer to stratosphere compared to troposphere.
c) Clouds are present in Troposphere
which cool the later.
d) None of the above.
5. How much of
the earth’s air is found in the atmosphere inner most layer (troposphere)
a) 75 %
b) 80 %
c) 65 %
d) 57 %
6.Which layer of the atmosphere is known as global
sunscreen?
a)
Troposphere.
b) Stratosphere.
c) Mesosphere.
d) Thermosphere
7. Which are the chemical constituents found in
Exposphere? A. Helium.
a) Ozone.
b) Oxygen
c) Methane
d) Helium.
8. The transitional region between the the atmosphere
and vacuum of inter planetary space is called?
a)
Troposphere.
b) Stratosphere.
c) Mesosphere.
d) Exosphere.
9. The layer of the
earth the reflects radio wave back to earth is called?
a) Ionosphere
b) Radiation zone
c) Aurora borealis
d) Ozone layer
10. In the atmosphere, tiny solid or liquid suspended
particles of various composition are called?
a) Aerosols
b) Carcinogens
c) Greenhouse Gases
d) Microbes
Hydrosphere
1.
Precipitation is usually expressed in which of the following units?
- ml
- g/m²
- mm
- m³
2. Which of the following is not a method of
estimating river discharge?
- Dilution Gauging
- Atmometer readings
- Rating Curve
- Velocity-Area Method
3. Which of the following does not apply to
infiltration excess overland flow?
- Common in semi-arid areas where soil surface
crusts develop
- Rare in areas subject to extreme rainfall
events
- Common where the surface is often frozen
- Rare in many temperature areas because infiltration capacity is too high
4. Which of the following is not one of the
major paths for water entering the soil?
- Percolates into bedrock
- Infiltration-excess overland flow
- C. Taken up by plants and transpired
- Travels laterally through the soil
5.
What does a 'hydrograph' display?
- Variations in water temperature against
discharge
- Variations in river discharge over time
- Variations in sediment concentration against
river discharge
- Variations in snowfall over time
6.
Which of the following statements is not correct with respect to river flow in dry
land environments?
- Dry lands are characterized by rare but intense
rainfall events
- Most of the water is stored above ground to
maintain base flow until the next flood event
- Coarse and sandy soil often results in high
infiltration capacities
- The intense nature of rainfall events causes rapid runoff and high flood peaks
7.
Which of the following is the most likely impact of deforestation and increased
grazing intensity?
- Increased infiltration capacity and greater
base flow contribution
- Reduced infiltration capacity and greater
infiltration-excess overland flow generation
- Reduced annual river flow
- Increased precipitation input
8.
In the context of river flows in glacial regions, which of the following is not
correct?
- Large snow/ice melt input in early winter
causes high flood potential
- Discharge can be extremely low over winter
- Outputs in the water budget often do not equal
inputs due to a large amount of long term water storage
- Discharge is lower at night than during the daytime
9.
In which of the following through flow pathways does water travel through the
finest soil pores?
- Stomatal pore flow
- Matrix flow
- Pipe flow
- Macropre flow
10.
Approximately what percentage of the earth's surface is covered by oceans?
- 10%
- 35%
- 71%
- 90%
11. Rising levels of atmospheric carbon dioxide
will cause which of the following changes in oceanic chemistry?
- Increased salinity
- Decreased pH
- Decreased salinity
- Increased precipitation of calcium carbonate
12.
Which two features together control the density of seawater?
- Salinity and depth
- Temperature and sea depth
- Temperature and salinity
- Salinity and plankton concentration
13.
Surface ocean currents are driven mainly by which of the following?
- Salinity gradients
- Prevailing winds
- Temperature gradients
- Warm Air
14.
Deep ocean currents are driven mainly by which of the following?
- Prevailing winds
- Temperature and salinity gradients
- Mid-ocean ridge volcanism
- Earth’s rotation
15.
Which of the following reservoir contains the most water?
- Atmosphere
- Biosphere
- Groundwater
- Lake and Rivers
16.
The main parts of the water cycle are evapotranspiration, precipitation, and
- Evaporation
- Condensation
- Runoff
- Deposition
17. Condensation is a change in water from a
- Solid to liquid
- Liquid to solid
- Gas to liquid
- Liquid to gas
18.
All the sediment carried by a river is called the
- Suspended load
- Bed load
- Stream load
- Dissolved load
19.
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
- Low porosity
- Low permeability
- Poor sorting
- High iron content
20.
The water table forms the upper surface of the
- Cap rock layer
- Contour surface
- Zone of saturation
- Artesian formation
21.
Which of the following statements about groundwater is true?
- Groundwater is a nonrenewable
resource.
- Groundwater can be replenished by
pumping sea water into the ground.
- Once groundwater is polluted it can
never be used again
- Groundwater can be conserved by recycling used water.
22. Drainage basins are also called
- Floodplains
- Whirlpools
- Watersheds
- Artesian wells
23. The attraction of water molecules to other
materials, such as soil, is called
- Permeability
- Gradient
- Porosity
- Capillary action
24.
One of the major disadvantages of hard water is that it
- Cannot be used for drinking
- Inhibits the flow of water up
through artesian wells
- Contaminates groundwater aquifers
- Damages appliances due to the buildup of mineral deposits
25.
When water freezes it
- Decreases in volume
- Becomes denser causing ice to sink
- Increased in volume, which causes ice to float.
- No phase change occurs
26. Because water become less dense when the
temperature moves from 4o C to 0o C water that is near the freezing point will
be found
- On the surface of a lake
- On the bottom of a lake
- At the mid-level of a lake
- Only next to the shore.
27.
Water is called the universal solvent because
- Water dissolves nothing
- Water dissolves more substances than any other
solvent.
- Water dissolves everything
- None of the above
28.
Properties that make water feel wet are
- Adhesion
- Cohesion
- A and B
- None of the above
29.
Cohesion properties of water allow
- Some spiders to walk on water
- Wood to float
- Water to dissolve sugar
- Water to cool out bodies
30.
Capillary action of water is caused by
- Adhesion and cohesion properties
- Adhesion properties only
- Solvent properties of water
- Water's specific heat
31.
Phase changes of water occur when
- Liquid changes to ice
- Ice changes to liquid
- Liquid changes to steam
- All of the above
32.
Energy is lost from water when
- Ice changes to liquid
- Liquid changes to steam
- The water temperature increases
- Steam changes to liquid
33.
The unique properties of water are mostly the result of?
- Ionic bonds
- Atomic bonds
- Hydrogen bonds
- Covalent bonds
34.
The unique properties of water are
important to?
- Ecology of lakes, streams, and
oceans
- Plants the use water to transport
nutrients
- Animals whose blood must contain
water to move all chemicals they need to survive
- All of the above.
35. Which body of water has the highest
salinity?
- Mediterranean Sea
- Red Sea
- Baltic Sea
- Black Sea
36.
Which feature is at the greatest depth in the ocean?
- Abyssal plain
- Continental shelf
- Submarine canyon
- Continental rise
37.
What is transported through the ocean in turbidity currents?
- Nutrients
- Oxygen
- Salts
- Sediments
38.
At what temperature does fresh water have its maximum density?
- 0 degree C.
- 4 degrees C
- 32 degrees C
- 100 degrees C
39. A river flows into a quiet lake and begins
to form a __________________?
- Delta
- Alluvial fans
- Natural levees
- Point bars
40.
About how much dissolved materials do rivers transport each year?
- 2-4 thousand tons
- 2-4 million tons
- 2-4 billion tons
- 2-4 trillion tons
Thanks!!! We really appreciate all that you are doing for us....
ReplyDelete:')
You're welcome, Rafi! Glad that you're finding these helpful.
DeleteEgula porlei ki common paoa zabe naki?
ReplyDeleteNot sure. But If you want to practice, then this will be beneficial.
DeleteBhaia,I'm selected for the national round but I need help in astrophysics and astronomy.
ReplyDeleteWhere should I study from???
I mean,I know the basics and some maths but what type of astrophysics questions are gonna be in the nationals???
Could you give suggestions???
I guess High School Earth Science Astronomy Section will suffice. Astronomy questions at NEO are really easy, most importantly you don't have to apply any Astrophysics theory.
DeleteWhen are the sample questions gonna be uploaded?
ReplyDeleteIf they are,where can I get them?
Do I have to read anything except for the highschool earth science?
Last but not the least what is the format gonna be like?
Will it be like the divisional round??????
They have uploaded the sample questions already. You can have a look here (http://scienceolympiadsbd.blogspot.com/2014/04/neo-2014-sample-questions.html)
DeleteHigh School Earth Science should suffice. If you want to look for more resources, you can have it here- (http://scienceolympiadsbd.blogspot.com/2013/05/national-earth-olympiad-preparation.html)
Format will be same as the divisional round, but little harder.
Bhaia,I already have these questions since the divisional round.What I wanna mean is that are there any seperate sample questions for the nationals???????
ReplyDeleteNope :(
DeleteThen, will the analytical questions be there and what will be the difficulty and what are they gonna be like????
ReplyDeleteBhaia,about the preperation of the neo,I mean the questions uploaded here,could you mail me the answers because I can't find some of their answers even after trying and doing some research.
thanks for the questions
ReplyDeletewhere can i get answer keys of the above questions
this is really helpful thanks for all your efforts
ReplyDelete