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Worksheets24-25 S6 Geography 2nd Term Exam Revision
Total questions: 50
Worksheet time: 37mins
Moisture transfer from plants to the atmosphere is called (a) .
Evaporation and transpiration are collectively known as
(a)
There are two conditions required for evaporation to occur:
availability of energy and water
the air above the water bodies is not saturated
the air above the water bodies is saturated
availability of oxygen and carbon dioxide in the air
___________________ is the amount of water vapour held in the atmosphere. It can be expressed in grams of water vapour per cubic metre of air.
Relative humidity
humidity
humid
Relative humidity is the ratio of the actual amount of water vapor in the air in relation to the maximum water-holding capacity of the air at a certain air temperature. It is expressed as ______________.
g/m3
%
g/m
ml
The state at which the relative humidity of air reaches 100%.
Dew point
Condensation
Saturation
Full humidity
The air temperature at which saturation occurs.
Dew point
Condensation level
Saturation point
Saturation level
The change of water from a gas state to a liquid state.
Evaporation
Transpiration
Condensation
Precipitation
Tiny particles on which water vapour condenses is called...
dead skin cells
head skin
dust
condensation nuclei
The altitude at which condensation occurs is called...
condensation point
condensation level
dew point
dew level
As the temperature rises, the maximum amount of water vapour air can hold _______________.
increases
decreases
When air cools, its water-holding capacity decreases. This means its relative humidity ____________.
drops
rises
When the relative humidity of air reaches 100%, the air cannot hold all the water vapour it contains. _____________ occurs.
precipitation
condensation
evaporation
runoff
Air temperature and the maximum amount of water vapor that air can hold has a ____________ relationship.
positive
negative
Calculate the relative humidity of the air at 30C (with a max. water holding capacity of 28g/m3) if it holds 10g/m3 of water vapor at this moment:
35.7%
53.7%
28%
30%
Which of the following features can be found in the thermosphere?
Ozone layer
Weather balloon
Satellites
Aurora
Which of the following atmospheric layer refers to outer space?
Exosphere
Stratosphere
Mesosphere
Thermosphere
Ionosphere
Difference in air pressure divided by distance = pressure (a) .
Air pressure of location A: 1028 hpa
Air pressure of location B: 1004 hpa
Distance of AB measured by ruler: 2.4cm
Scale: 1 cm is to 20km
Find the pressure gradient along AB:
1.8 hpa/km
0.5 hpa/km
2 hpa/km
5.0 hpa/km
T/F : The earth rotates on its axis from west to east.
True
False
The force that causes the deflection of winds is (a) force.
The global wind system is called the (a) wind system.
T/F: Trade winds blow from subtropical low to the equatorial high.
True
False
T/F: Westerlies are south-westerlies in the Northern Hemisphere and north-westerlies in the Southern Hemisphere.
True
False
The two major boundaries where winds converge and rise are:
Subtropical region
Intertropical convergence zone
Polar front
Polar region
Which of the following wind cells can be found between 30 and 60 degrees north and south?
Hadley cell
Ferrel cell
Polar cell
Subpolar cell
__________________ occurs when the layer of freezing air is so thin that the raindrops do not have enough time to freeze before reaching the ground. Instead, the water freezes on contact with the surface, creating a coating of ice on whatever the raindrops contact.
Sleet
Snow
Freezing rain
Drizzle
To an observer in the Southern Hemisphere, the earth seems to rotate in ______________ direction.
clockwise
anticlockwise
_______________ is a line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period.
isotherm
isobar
contour line
Which of the following conditions are necessary for the formation of hailstones?
High atmospheric pressure
Low humidity levels
Freezing air temperature during winter
Updrafts in thunderstorms
Strong convection currents in the cumulonimbus cloud
The process by which water vapor turns into liquid water is known as...
Precipitation
Transpiration
Condensation
Evaporation
What phenomenon occurs when warm air rises and cools, leading to cloud formation?
Advection
Convection
Conduction
Radiation
Which of the following phenomena is characterized by tiny water droplets suspended in the air, reducing visibility but not reaching the ground?
Virga
Mist
Dew
frost
What is the primary difference between sleet and freezing rain?
Sleet occurs at higher temperatures than freezing rain.
There is no difference; they are the same phenomenon.
Sleet forms as ice pellets, while freezing rain forms as liquid that freezes on contact.
Freezing rain is a type of sleet.
Which of the following best describes virga?
Rain that evaporates before reaching the ground.
A type of fog that forms over water bodies.
Frozen precipitation that falls to the ground.
Water droplets that condense on surfaces.
Which form of precipitation is this?
Snow
Virga
Sleet
Frost
Which form of condensation is this?
Mist
Frost
Sleet
Dew
A mixture of snowflakes and rain is known as (a) .
Droplets of water with a diameter of about 0.2-0.5mm is known as (a) .
Rounded pellets or irregular lumps of ice formed by the growth of successive layers of ice is known as (a) .
Most meteoroids that enter the Earth's atmosphere burn up in the ______________ due to the high density of air at this altitude, preventing them from reaching the surface. This protects the Earth from potential impacts.
Troposphere
Stratosphere
Mesosphere
Thermosphere
Exosphere
As ice pellets collide with _________ water, the water freezes around each pellet, causing the hailstone to grow.
supercooled
warm
cool
boiling
The size of hailstones is influenced by several factors, including: (Select the BEST TWO correct answers)
Updraft Strength
Moisture Availability
Population density
Urban Planning
Which one of the following atmospheric ingredients is not necessary for the growth of hail?
Calm weather with no wind
warm rising air
humid air
unstable air mass
Convective thunderstorms: Hail forms in strong, towering (a) clouds that develop during convective activity. In spring and early summer, warm, moist air from the South China Sea interacts with cold air masses from the north, creating the instability needed for thunderstorms.
Macau's subtropical monsoon climate can generate strong _____________ in the atmosphere during thunderstorms. The _____________ lift water droplets into the colder parts of the cloud, where they freeze and form hailstones.
(a)
Hailstorms can occur in Macau, but they are rare and most likely during __________or___________ due to atmospheric instability and convective activity. The necessary conditions include strong thunderstorms with significant updrafts and a temperature contrast between the surface and upper atmosphere.
spring season
winter season
fall/ autumn season
summer season
The Coriolis force deflects winds to the right of their path of movement in the (a) hemisphere.
When air converges near the earth's surface, air _______. The density of air becomes ________ near the earth's surface. This reduces the pressing force of the air there. Air pressure thus decreases.
rises ; higher
rises ; lower
sinks ; higher
sinks ; lower
Select all forms of condensation:
dew
drizzle
virga
rime / frost
mist / fog
