Q 1 – What is the main source of atmospheric moisture?
(a) river
(b) rain water
(c) lakes
(d) ocean surface
(d) ocean surface.
Q 2 – Amount of water present in air is known as
(a) humidity
(b) moisture
(c) vapour
(d) none of these
(a) humidity.
Q 3 – Which factor controls evaporation?
(a) temperature
(b) aridity
(c) movement of air
(d) all of these
(d) all of these.
Q 4 – At what temperature the given sample of air becomes saturated?
(a) freezing point
(b) absolute zero
(c) dew point
(d) none of these
(c) Dew point
Q 5 – What is called the cooling of saturated air?
(a) evaporation
(b) condensation
(c) freezing
(d) dew formation
(b) Condensation.
Q 6 – The actual amount of water vapour present in the atmosphere is known as
(a) humidity
(b) absolute humidity
(c) aridity
(d) relative humidity
(b) absolute humidity.
Q 7 – The % of moisture present in the atmosphere as compared to its full capacity is known as
(a) absolute humidity
(b) relative humidity
(c) humidity
(d) none of these
(b) relative humidity.
Q 8 – At what temperature does saturation occur?
(a) freezing point
(b) absolute zero
(c) dew point
(d) none of these
(c) dew point
Q 9 – Name the process by which liquid vapour changes into solid form
(a) evaporation
(b) condensation
(c) dew formation
(d) none of these
(b) condensation.
Q 10 – Falling of frozen rain drops on the surface of the earth is known as
(a) precipitation
(b) sleet
(c) both of these
(d) none of these
(b) sleet
Q 11 – The amount of water vapour actually present per unit weight of air is known as
(a) absolute humidity
(b) relative humidity
(c) specific humidity
(d) none of these
(b) relative humidity.
Q 12 – Which factors increase the rate of evaporation?
(a) high temperature
(b) clear sky
(c) dry winds
(d) all of these
(d) all of these.
Q 13 – Which one is the form of precipitation?
(a) snow
(b) sleet
(c) rainfall
(d) all of these
(d) all of these.
Q 14 – The unit of relative humidity is known as
(a) percent
(b) gram
(c) volume
(d) none of these
(a) percent
Q 15 – Tiny droplets of water suspended in air are known as
(a) mist
(b) dew
(c) smog
(d) cloud
(d) cloud.
Q 16 – Which factor controls the rate of evaporation?
(a) temperature
(b) moisture
(c) movement of air
(d) all of these
(d) all of these
Q 17 – When moist air comes into contact with cold air, it gets condensed around the floating dust particles. This is called
(a) fog
(b) dew
(c) smog
(d) mist
(a) fog.
Q 18 – Which one is the form of a cloud?
(a) cirrus
(b) cumulus
(c) stratus
(d) all of these
(d) all of these.
Q 19 – Which type of clouds are formed at high altitude (8000-12000 m)?
(a) cirrus
(b) cumulus
(c) stratus
(d) nimbus
(a) cirrus.
Q 20 – Which type of clouds are formed at a height of (4000-7000 m)?
(a) stratus
(b) nimbus
(c) cumulus
(d) cirrus
(c) cumulus.
Q 21 – Which one is known as a type of layered clouds?
(a) stratus
(b) nimbus
(c) cumulus
(d) none of these
(a) stratus.
Q 22 – On the basis of origin, rainfall is classified into types.
(a) two
(b) three
(c) five
(d) four
(b) three.
Q 23 – In which area the cyclonic rain is most common?
(a) easterlies
(b) westerlies
(c) temperate region
(d) none of these
(b) westerlies
Q 24 – The equatorial belt receives annual rainfall
(a) 100-200 cm.
(b) 200 cm.
(c) 50-100 cm.
(d) less than 50 cm.
(b) 200 cm.
Q 25 – If water vapour directly condenses into solid form, it is known as _________
(a) evaporation
(b) condensation
(c) sublimation
(d) saturation
(c) sublimation
Q 26 – What is the energy required to change water’s state or phase, without changing its temperature called?
(a) Latent heat of the Earth
(b) Latent heat of the water
(c) Latent heat of the rock
(d) Latent heat of the atmosphere
(b) Latent heat of the water
Q 27 – ______ is frozen raindrops and refrozen melted snow-water.
(a) Sleet
(b) Frost
(c) Cloud
(d) Mist
(a) Sleet
Q 28 – When air containing water reaches its saturation point, then
(a) No more water evaporates from the ground
(b) It leads to evaporation above sea and precipitation above land.
(c) Water vapour forms droplets
(d) The droplets fall out of the clouds
(c) Water vapour forms droplets
Q 29 – The percentage of moisture present in the atmosphere as compared to its full capacity at a given temperature is known as the
(a) Relative humidity
(b) Specific humidity
(c) Absolute humidity
(d) Saturated air
(a) Relative humidity
Q 30 – The air can only contain a certain amount of water vapour before it is saturated. This amount is dependent on
(a) the temperature of the air
(b) whether the air is above sea or land
(c) the wind speed
(d) the amount of dust particles in the air
(a) the temperature of the air
Q 31 – Orographic rainfall is more on
(a) windward slopes
(b) leeward slopes
(c) plains
(d) valleys
(a) windward slopes
Q 32 – The alto clouds are found at
(a) high levels
(b) mid-levels
(c) low levels
(d) low, mid, and high levels
:(b) mid-levels
Q 33 – When the water containing air becomes saturated, then
(a) it will be calm
(b) it will be windy above sea and rainy above land
(c) it will start to rain
(d) clouds will be formed
(d) clouds will be formed
Q 34 – The actual amount of the water vapour present in the atmosphere is known as _________
(a) Relative humidity
(b) Absolute humidity
(c) Condensation
(d) None of the above
(b) Absolute humidity
Q 35 – ________ is a mass of minute water droplets or tiny crystals of ice formed by the condensation of the water vapour in free air at considerable elevations.
(a) Dew
(b) Frost
(c) Cloud
(d) Mist
(c) Cloud
Q 36 – Rainshadow zone means
(a) windward slopes of the mountains
(b) the leeward side of the mountain
(c) mountainous area
(d) coastal area
(b) leeward side of the mountain
Q 37 – Which one of the following is the most important constituent of the atmosphere for human beings?
(a) Water vapour
(b) Nitrogen
(c) Dust particle
(d) Oxygen.
(a) Water vapour
Q 38 – Which one of the following process is responsible for transforming liquid into vapour?
(a) Condensation
(b) Transpiration
(c) Evaporation
(d) Precipitation.
(c) Evaporation
Q 39 – The air that contains moisture to its full capacity:
(a) Relative humidity
(b) Specific humidity
(c) Absolute humidity
(d) Saturated air.
(d) Saturated air.
Q 40 – Which one of the following is the highest cloud in the sky?
(a) Cirrus
(b) Stratus
(c) Nimbus
(d) Cumulus.
(a) Cirrus