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Social Studies MCQ (1 Mark)

Air · CBSE STD 7 (CBSE - English Medium). 76 questions.

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MCQ (1 Mark)

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50 questions · auto-graded multiple-choice test.

MCQ 11 Mark
Which winds change their direction in different seasons?
  • A
    Permanent winds.
  • ✓
    Seasonal winds.
  • C
    Local winds.
  • D
    None of the above.
Answer
Correct option: B.
Seasonal winds.
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MCQ 21 Mark
Which one of the following gases is present in the atmosphere in the highest amount?
  • A
    Oxygen.
  • B
    Carbon dioxide.
  • ✓
    Nitrogen.
  • D
    Lithium.
Answer
Correct option: C.
Nitrogen.
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MCQ 31 Mark
What are the important objects for survival of plants and animals?
  • A
    Rainfall.
  • B
    Sun light.
  • C
    Oxygen.
  • ✓
    All of these.
Answer
Correct option: D.
All of these.
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MCQ 41 Mark
On the Celsius scale the water freezes at $........$ and boils at $..........$
  • A
    $32^\circ C, 232^\circ C$
  • B
    $10^\circ C, 90^\circ C$
  • C
    $100^\circ C, 0^\circ C$
  • ✓
    $0^\circ C, 100^\circ C$
Answer
Correct option: D.
$0^\circ C, 100^\circ C$
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MCQ 51 Mark
What is released in the air from the burning of fuels?
  • ✓
    Carbon dioxide.
  • B
    Helium.
  • C
    Nitrogen.
  • D
    Argon.
Answer
Correct option: A.
Carbon dioxide.
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MCQ 61 Mark
Green plants use $.......$ to make their food and release $........$
  • A
    Oxygen, helium.
  • B
    Carbon dioxide, hydrogen.
  • C
    Helium, hydrogen.
  • ✓
    Carbon dioxide, oxygen.
Answer
Correct option: D.
Carbon dioxide, oxygen.
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MCQ 71 Mark
What is responsible for the excess of $\mathrm{CO}_2$?
  • ✓
    Global warming.
  • B
    Global cooling.
  • C
    Both $(a)$ and $(b).$
  • D
    None of these.
Answer
Correct option: A.
Global warming.
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MCQ 81 Mark
The hot and dry local wind northern planes of India:
  • A
    Land breeze.
  • B
    Hot breeze.
  • ✓
    Loo.
  • D
    Monsoon.
Answer
Correct option: C.
Loo.
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MCQ 91 Mark
Carbon dioxide released in the atmosphere creates a:
  • ✓
    Green house effect.
  • B
    Carbon effect.
  • C
    Earth effect.
  • D
    Dioxide effect.
Answer
Correct option: A.
Green house effect.
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MCQ 101 Mark
The degree of hotness and coldness of the air is known as:
  • A
    Weather.
  • ✓
    Temperature.
  • C
    Climate.
  • D
    Season.
Answer
Correct option: B.
Temperature.
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MCQ 111 Mark
Stratosphere contains a layer of which gas?
  • A
    Nitrogen gas.
  • ✓
    Ozone gas.
  • C
    Helium gas.
  • D
    None of these.
Answer
Correct option: B.
Ozone gas.
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MCQ 121 Mark
Which gases make the bulk of the atmosphere?
  • A
    Nitrogen.
  • B
    Oxygen.
  • ✓
    Both $(a)$ and $(b).$
  • D
    None of these.
Answer
Correct option: C.
Both $(a)$ and $(b).$
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MCQ 131 Mark
Which gas is used by the green plants to make their food?
  • A
    Oxygen.
  • ✓
    Carbon dioxide.
  • C
    Nitrogen.
  • D
    None of these.
Answer
Correct option: B.
Carbon dioxide.
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MCQ 141 Mark
Which element of weather is measured in degree Celsius?
  • ✓
    Temperature.
  • B
    Pressure.
  • C
    Wind.
  • D
    Gravity.
Answer
Correct option: A.
Temperature.
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MCQ 151 Mark
Which of the following gases protects us from harmful sun vays?
  • A
    Carbon dioxide.
  • B
    Nitrogen.
  • ✓
    Ozone.
  • D
    None of these
Answer
Correct option: C.
Ozone.
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MCQ 161 Mark
Which of the following are part of weather forecast in the newspapers?
  • A
    Temperature.
  • B
    Humidity.
  • C
    Time of Sunset.
  • ✓
    All of These.
Answer
Correct option: D.
All of These.
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MCQ 171 Mark
The standard unit of measuring temperature is:
  • A
    Fahrenheit.
  • B
    Meter.
  • ✓
    Kelvin.
  • D
    Celsius.
Answer
Correct option: C.
Kelvin.
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MCQ 181 Mark
What is air pressure?
  • A
    Pressure exerted by the wind.
  • B
    Pressure exerted by the rain.
  • ✓
    Pressure exerted by the weight of air.
  • D
    None of these.
Answer
Correct option: C.
Pressure exerted by the weight of air.
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MCQ 191 Mark
In which layers all weather phenomenon occurs?
  • ✓
    Troposphere.
  • B
    Stratosphere.
  • C
    Thermosphere.
  • D
    Mesosphere.
Answer
Correct option: A.
Troposphere.
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MCQ 201 Mark
Which of the following is not the layer of atmosphere.
  • A
    Mesosphere
  • B
    Stratosphere
  • C
    Troposphere
  • ✓
    Hydrosphere
Answer
Correct option: D.
Hydrosphere
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MCQ 211 Mark
When water evaporates from land and different water bodies, it becomes:
  • A
    Ice.
  • B
    Snow.
  • C
    Rain.
  • ✓
    Water Vapour.
Answer
Correct option: D.
Water Vapour.
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MCQ 231 Mark
What do you mean by weather?
  • A
    Incoming solar energy.
  • ✓
    All condition of the atmosphere.
  • C
    Both $(a)$ and $(b).$
  • D
    None of these.
Answer
Correct option: B.
All condition of the atmosphere.
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MCQ 241 Mark
Rain, snow sleet or hail are the different forms of:
  • A
    Condensation.
  • B
    Evaporation.
  • ✓
    Precipitation.
  • D
    All of these.
Answer
Correct option: C.
Precipitation.
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MCQ 251 Mark
Jet planes flying in the sky leave a $........$ trail behind them.
  • A
    Black
  • B
    Blue
  • ✓
    White
  • D
    Grey
Answer
Correct option: C.
White
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MCQ 261 Mark
Pollution of water is responsible for:
  • A
    Oil refineries.
  • B
    Paper factories.
  • C
    Sugar mills.
  • ✓
    All.
Answer
Correct option: D.
All.
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MCQ 271 Mark
Which one of the following gases protects us from harmful sun's rays?
  • ✓
    Ozone.
  • B
    Nitrogen.
  • C
    Carbon dioxide.
  • D
    Oxygen.
Answer
Correct option: A.
Ozone.
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MCQ 281 Mark
Ozone layer is found in:
  • A
    Troposphere.
  • B
    Mesosphere.
  • C
    Thermosphere.
  • ✓
    Stratosphere.
Answer
Correct option: D.
Stratosphere.
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MCQ 291 Mark
As we $........$ the layers of atmosphere, the pressure $.........$
  • A
    go up, rise.
  • B
    go down, falls.
  • C
    go down, does not change.
  • ✓
    go up, falls.
Answer
Correct option: D.
go up, falls.
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MCQ 301 Mark
The $.........$ winds blow constantly throughout the year in a particular direction.
  • A
    Directional
  • B
    Local
  • ✓
    Permanent
  • D
    Seasonal
Answer
Correct option: C.
Permanent
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MCQ 311 Mark
Identify the gas known as green house gas.
  • A
    Oxygen.
  • B
    Nitrogen.
  • ✓
    Carbon dioxide.
  • D
    Argon.
Answer
Correct option: C.
Carbon dioxide.
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MCQ 321 Mark
The water boils at.
  • A
    $10^\circ C$
  • B
    $50^\circ C$
  • C
    $75^\circ C$
  • ✓
    $100^\circ C$
Answer
Correct option: D.
$100^\circ C$
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MCQ 331 Mark
Which of these is not a permanent wind:
  • A
    Westerlies.
  • B
    Polar winds.
  • C
    Trade winds.
  • ✓
    Monsoon winds.
Answer
Correct option: D.
Monsoon winds.
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MCQ 341 Mark
As we go up in troposphere layer of the atmosphere the pressure.
  • A
    Increases.
  • ✓
    Decreases.
  • C
    No change.
  • D
    All of these.
Answer
Correct option: B.
Decreases.
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MCQ 351 Mark
Degree of hotness and coldness of the air is called:
  • A
    Humidity.
  • B
    Pressure.
  • ✓
    Temperature.
  • D
    Insolation.
Answer
Correct option: C.
Temperature.
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MCQ 361 Mark
What is the result when the air is heated?
  • A
    Heavier.
  • ✓
    Lighter.
  • C
    Colder.
  • D
    Warmer.
Answer
Correct option: B.
Lighter.
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MCQ 371 Mark
When the air is heated it becomes?
  • ✓
    Lighter.
  • B
    Heavier.
  • C
    Colder.
  • D
    None of these.
Answer
Correct option: A.
Lighter.
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MCQ 381 Mark
What is the average height of the troposphere?
  • A
    $3\ km$
  • B
    $6\ km$
  • C
    $9\ km$
  • ✓
    $13\ km$
Answer
Correct option: D.
$13\ km$
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MCQ 391 Mark
Which Type Of Heat Transfer Is Actually Minimized When Using A Thermo Flask?
  • A
    Conduction.
  • B
    Convection.
  • ✓
    Radiation.
  • D
    All the above.
Answer
Correct option: C.
Radiation.
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MCQ 401 Mark
Which is the second most plentiful gas in the air:
  • A
    Nitrogen.
  • B
    Argon.
  • ✓
    Oxygen.
  • D
    Hydrogen.
Answer
Correct option: C.
Oxygen.
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MCQ 411 Mark
Choose the state which is prone to cyclones that originate in the Bay of Bengal and is located on the eastern seacoast of India.
  • A
    Kerala.
  • ✓
    Odisha.
  • C
    Tamil Nadu.
  • D
    Andhra Pradesh.
Answer
Correct option: B.
Odisha.
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MCQ 421 Mark
A wind is named after the:
  • A
    Area it cover.
  • B
    Place from which it blow.
  • C
    Weight it has.
  • ✓
    Direction from which it blows.
Answer
Correct option: D.
Direction from which it blows.
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MCQ 431 Mark
The air pressure is highest at:
  • A
    Plain level.
  • B
    Plateau level.
  • ✓
    Sea level.
  • D
    Mountain level.
Answer
Correct option: C.
Sea level.
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MCQ 441 Mark
Where is the air pressure highest?
  • A
    Moon.
  • ✓
    Pressure.
  • C
    Stratosphere.
  • D
    Gravity.
Answer
Correct option: B.
Pressure.
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MCQ 451 Mark
Cold air is $........$ than hot air:
  • A
    Small and heavy.
  • B
    Less denser and light.
  • ✓
    Denser and heavy.
  • D
    Small and light.
Answer
Correct option: C.
Denser and heavy.
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MCQ 461 Mark
Which of the following layers of the atmosphere is free from clouds?
  • A
    Troposphere.
  • ✓
    Stratosphere.
  • C
    Mesosphere.
  • D
    None of these
Answer
Correct option: B.
Stratosphere.
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MCQ 471 Mark
Name the types of rainfall?
  • A
    Cyclonic.
  • B
    Orographic.
  • C
    Convectional.
  • ✓
    All of the above.
Answer
Correct option: D.
All of the above.
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MCQ 481 Mark
Cooking Utensils Are Made Of Metals Because They Are:
  • A
    Durable.
  • B
    Malleable.
  • ✓
    Good conductors of heat.
  • D
    Do not break on heating.
Answer
Correct option: C.
Good conductors of heat.
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MCQ 491 Mark
Instrument measure the amount of rainfall:
  • ✓
    Raingauge
  • B
    Rainwave
  • C
    Rainosphere
  • D
    Ranometer
Answer
Correct option: A.
Raingauge
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MCQ (1 Mark) - Social Studies STD 7 Questions - Vidyadip