Q 1 – Name the sphere which constitutes the earth.
(a) atmosphere
(b) hydrosphere
(c) organic biosphere
(d) lithosphere
(a) atmosphere
Q 2 – Earth receives almost all its energy from the
(a) sun
(b) moon
(c) stars
(d) none of these
(a) sun.
Q 3 – What is the temperature at the sun’s gaseous surface?
(a) 570 degree Celsius
(b) 5700 degree celcius
(c) 57000 degree Celsius
(d) 5000 degree celcius
(b) 5700 degree Celsius.
Q 4 – Bodies radiate energy in which form?
(a) light
(b) wave
(c) particles
(d) none of these
(b) wave.
Q 5 – Earth in turn radiates the heat back to the atmosphere in long waves called
(a) terrestrial radiation
(b) photochemical radiation
(c) heat radiations
(d) ultraviolet radiations
(a) terrestrial radiation.
Q 6 – What is the distance between the sun and the earth?
(a) 152 million km.
(b) 1520 million km.
(c) 15200 million km.
(d) 1500 million km.
(a) 152 million km.
Q 7 – On what day the earth is nearest to the sun?
(a) 21st June
(b) 23rd December
(c) 3rd January
(d) 21st July
(c) 3rd January.
Q 8 – The dark spots appearing on the sun’s surface are called
(a) Sun spots
(b) Aurora australis
(c) Auroralis
(d) none of these
(a) Sun spots.
Q 9 – What causes the variations in insolation?
(a) rotation of the earth on its axis
(b) terrestrial radiations
(c) atmospheric gases
(d) none of these
(a) rotation of the earth on its axis
Q 10 – Which factor determines the angle of inclination of solar rays?
(a) altitude
(b) ocean currents
(c) latitude
(d) rotation of’the earth
(c) latitude.
Q 11 – On what day the sun is overhead at the Tropic of Cancer?
(a) July 21st
(b) June 21st
(c) January 3rd
(d) March 21st
(b) June 21st.
Q 12 – The angle of inclination of sun’s rays at noon at Delhi (28°N):
(a) 85°
(b) 47°
(c) 0°
(d) 57°
(a) 85°
Q 13 – The axis of rotation of Earth is inclined about
(a) 23½°
(b) 66½°
(c) 28°N
(d) none of these
(b) 66½°.
Q 14 – When is North pole inclined 23½° toward the sun?
(a) 21st March
(b) 21st June
(c) 23rd September
(d) 23rd March
(b) 21st June.
Q 15 – Which processes operate on insolation during the passage through the atmosphere?
(a) absorption
(b) scattering
(c) reflection
(d) all of these
(d) all of these.
Q 16 – Through which process the colour of the sky seems blue?
(a) absorption
(b) reflection
(c) scattering
(d) none of these
(c) scattering.
Q 17 – The combined reflection from the earth’s surface and clouds is known as
(a) insolation
(b) reflection
(c) albedo
(d) aurora Australis
(c) albedo.
Q 18 – The heat transfer by contact is termed as
(a) conduction
(b) convection
(c) radiation
(d) none of these
(a) conduction.
Q 19 – The earth transmits the heat by
(a) conduction
(b) convection
(c) radiation
(d) all of these
(d) all of these.
Q 20 – By which process the earth’s surface is heated?
(a) convection
(b) conduction
(c) radiation
(d) none of these
(b) conduction.
Q 21 – How much solar radiation is received at the top of the atmosphere?
(a) 100 units
(b) 110 units
(c) 47 units
(d) 53 units
(a) 100 units.
Q 22 – Which factor controls the temperature distribution?
(a) latitude
(b) altitude
(c) ocean current
(d) all of these
(d) All of these
Q 23 – What is normal lapse rate?
(a) 6.5°C per km.
(b) 65°C per km.
(c) 5.6°C per km.
(d) 6.6°C per km.
(a) 6.5°C per km
Q 24 – What least range of temperature is found between 20°S and 15°N?
(a) 3°C
(b) 5°C
(c) 20°C
(d) 10°C
(a) 3°C.
Q 25 – The sun has how many shapes?
(a) Four
(b) Three
(c) Two
(d) Five
(b) Three.
Q 26 – The sun is vertically overhead at noon on 21st June at
(a) the equator
(b) 23.5 degree N
(c) 23.5 degree S
(d) 66.5 degree N
(b) 23.5 degree N
Q 27 – The days are longest at
(a) Thiruvananthapuram
(b) Hyderabad
(c) Chandigarh
(d) Nagpur
(a) Thiruvananthapuram
Q 28 – This process of vertical heating of the atmosphere is known as ________
(a) Psychrometer
(b) Convection
(c) Evaporation
(d) None of the above
(b) Convection
Q 29 – Differences in pressure on the earth surface causes:
(a) Winds
(b) Precipitation
(c) Hail
(d) Seasons
(a) Winds
Q 30 – ______ are lines joining places having an equal temperature.
(a) Isotherms
(b) Evaporation
(c) Convection
(d) Pyrheliometer
(a) Isotherms
Q 31 – The heat energy absorbed by a known area in a fixed time is determined with the help of an instrument called
(a) Psychrometer
(b) Pyrheliometer
(c) Thermometric well
(d) Any instrument
(b) Pyrheliometer
Q 32 – What is Isotherm?
(a) The line joining the places of equal temperature
(b) The incoming short wave radiation
(c) The line joining the places of equal pressure
(d) None of the above
(a) The line joining the places of equal temperature
Q 33 – The earth radiates energy to the atmosphere in:
(a) Long wavelengths
(b) Radiation
(c) Insolation
(d) Short wavelengths
(a) Long wavelengths
Q 34 – Maximum insolation is received over the ____________
(a) Equator
(b) Tropical areas
(c) Sub-tropical areas
(d) Poles
(c) Sub-tropical areas
Q 35 – Insolation refers to ________
(a) Wind direction
(b) Solar radiation
(c) Precipitation
(d) None of the above
(b) Solar radiation
Q 36 – The sun is directly overhead at noon on 21st June at:
(a) The equator
(b) 23.5° S
(c) 23.5° N
(d) 66.5° N.
(a) The equator
Q 37 – In which one of the following cities, are the days the longest?
(a) Thiruvananthapuram
(b) Chandigarh
(c) Hyderabad
(d) Nagpur.
(a) Thiruvananthapuram
Q 38 – The atmosphere is mainly heated by the:
(a) Short wave solar radiation
(b) Reflected solar radiation
(c) Long wave terrestrial radiation
(d) Scattered solar radiation.
(c) Long wave terrestrial radiation
Q 39 – Make correct pairs from the following two columns.
| (a) Insolation | (i)The difference between the mean temperature of the warmest and the coldest months |
| (b) Albedo | (ii)The lines joining the places of equal temperature |
| (c) Isotherm | (iii) The incoming solar radiation |
| (d) Annual range | (iv) The percentage of visible light reflected by an object. |
a) (iii)
(b) (iv)
(c) (ii) and
(d) (i)
Q 40 – What percent of sunrays that is received by the upper layer of the atmosphere reach the earth surface?
(a) 43%
(b) 51%
(c) 53%
(d) 40%
(b) 51%