Q 1 – Which gas released in the atmosphere creates a greenhouse effect trapping the heat?
(a) Carbon dioxide
(b) Oxygen
(c) Nitrogen
(d) All of these
Ans. (a) Carbon dioxide
Q 2 – Excess amount of CO2 is responsible for
(a) global cooling
(b) global warming
(c) both (a) and (b)
(d) none of these
Ans. (b) global warming
Q 3 – What are the important objects for survival of plants and animals?
(a) Rainfall
(b) Sun light
(c) Oxygen
(d) All of these
Ans. (d) All of these
Q 4 – Which one of the following gases is present in the atmosphere in the highest amount?
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) Lithium
Ans. (c) Nitrogen
Q 5 – Which gas is used by the green plants to make their food?
(a) Oxygen
(b) Carbon dioxide
(c) Nitrogen
(d) None of these
Ans. (b) Carbon dioxide
Q 6 – Which is the important gas used by human beings for breathing?
(a) Nitrogen
(b) Carbon dioxide
(c) Oxygen
(d) Sodium chloride
Ans. (c) Oxygen
Q 7 – When the air is heated it becomes
(a) Lighter?
(b) Heavier?
(c) Colder?
(d) None of these
Ans. (a) Lighter?
Q 8 – What is the average height of the troposphere?
(a) 3 km
(b) 6 km
(c) 9 km
(d) 13 km
Ans. (d) 13 km
Q 9 – As we go up in troposphere layer of the atmosphere the pressure
(a) increases
(b) decreases
(c) no change
(d) all of these
Ans. (b) decreases
Q 10 – Which one of the following gases protects us from harmful sun’s rays?
(a) Ozone
(b) Nitrogen
(c) Carbon dioxide
(d) Oxygen
Ans. (a) Ozone
Q 11 – Which of the following are part of weather forecast in the newspapers?
(a) Temperature
(b) Humidity
(c) Time of Sunset
(d) All of These
Ans. (d) All of These
Q 12 – Which element of weather is measured in degree Celsius?
(a) Temperature
(b) Pressure
(c) Wind
(d) Gravity
Ans. (a) Temperature
Q 13 – The water boils at
(a) 10°C
(b) 50°C
(c) 75°C
(d) 100°C
Ans. (d) 100°C
Q 14 – Where is the air pressure highest?
(a) Moon
(b) Sea Level
(c) Stratosphere
(d) Exosphere
Ans. (b) Sea Level
Q 15 – What is very hot wind called?
(a) Loo
(b) Cool breeze
(c) Monsoon air
(d) Trade wind
Ans. (a) Loo
Q 16 – Which one of the following is a local wind?
(a) Sea breeze
(b) Trade wind
(c) Monsoon wind
(d) None of these
Ans. (a) Sea breeze
Q 17 – Rain, snow sleet or hail are the different forms of:
(a) Condensation
(b) Evaporation
(c) Precipitation
(d) All of these
Ans. (c) Precipitation
Q 18 – _________ Pressure is associated with cloudy skies and wet weather and _________ pressure is associated with clear and sunny skies.
(a) Low, Normal
(b) Normal, High
(c) Low, High
(d) High, also High
Ans. (c) Low, High
Q 19 – Jet planes flying in the sky leave a ________ trail behind them
(a) Black
(b) Blue
(c) White
(d) Grey
Ans. (c) White
Q 20 – The standard unit of measuring temperature is
(a) Fahrenheit
(b) Meter
(c) Kelvin
(d) Celsius
Ans. (c) Kelvin
Q 21 – When water evaporates from land and different water bodies, it becomes
(a) Ice
(b) Snow
(c) Rain
(d) Water Vapour
Ans. (d) Water Vapour
Q 22 – Cold air is ________ than hot air
(a) Small and heavy
(b) Less denser and light
(c) Denser and heavy
(d) Small and light
Ans. (c) Denser and heavy
Q 23 – The _______ winds blow constantly throughout the year in a particular direction.
(a) Directional
(b) Local
(c) Permanent
(d) Seasonal
Ans. (c) Permanent
Q 24 – Carbon dioxide released in the atmosphere creates a
(a) Green house effect
(b) Carbon effect
(c) Earth effect
(d) Dioxide effect
Ans. (a) Green house effect
Q 25 – ________ is this hour-to-hour, day to day condition of the atmosphere
(a) Wind
(b) Weather
(c) Season
(d) Climate
Ans. (b) Weather
Q 26 – As we ________ the layers of atmosphere, the pressure ______
(a) go up, rise
(b) go down, falls
(c) go down, does not change
(d) go up, falls
Ans. (d) go up, falls
Q 27 – Green plants use ________ to make their food and release ________
(a) Oxygen, helium
(b) Carbon dioxide, hydrogen
(c) Helium, hydrogen
(d) Carbon dioxide, oxygen
Ans. (d) Carbon dioxide, oxygen
Q 28 – What is released in the air from the burning of fuels?
(a) Carbon dioxide
(b) Helium
(c) Nitrogen
(d) Argon
Ans. (a) Carbon dioxide
Q 29 – Green House gas is
(a) Nitrogen
(b) Oxygen
(c) Ethane
(d) Carbon dioxide
Ans. (d) Carbon dioxide
Q 30 – Which of the following is not the types of rainfall
(a) Orographic rainfall
(b) Cyclonic rainfall
(c) Convectional rainfall
(d) Seasonal rainfall
Ans. (d) Seasonal rainfall
Q 31 – The degree of hotness and coldness of the air is known as
(a) Weather
(b) Temperature
(c) Climate
(d) Season
Ans. (b) Temperature
Q 32 – Which layer is almost free from clouds
(a) Troposphere
(b) Mesosphere
(c) Stratosphere
(d) Thermosphere
Ans. (c) Stratosphere
Q 33 – On the Celsius scale the water freezes at _______ and boils at ________
(a) 32ºC, 232ºC
(b) 10ºC, 90ºC
(c) 100ºC, 0ºC
(d) 0ºC, 100ºC
Ans. (d) 0ºC, 100ºC
Q 34 – Which is the second most plentiful gas in the air
(a) Nitrogen
(b) Argon
(c) Oxygen
(d) Hydrogen
Ans. (c) Oxygen
Q 35 – Our earth is surrounded by a huge blanket of
(a) Sand
(b) Air
(c) Plants
(d) Water
Ans. (b) Air
Q 36 – The air pressure is highest at
(a) Plain level
(b) Plateau level
(c) Sea level
(d) Mountain level
Ans. (c) Sea level