MCQOPTIONS
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MCQOPTIONS
This section includes 155 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Science knowledge and support exam preparation. Choose a topic below to get started.
| 51. |
Increase in carbon dioxide in atmosphere causes ________ |
| A. | ise in earth temperature |
| B. | all in earth temperature |
| C. | niform earth temperature |
| D. | ncrease in Ultraviolet rays |
| Answer» B. all in earth temperature | |
| 52. |
The cauliflower shape is associated with which of the following cloud formations? |
| A. | tratus |
| B. | umulus |
| C. | imbus |
| D. | irrus |
| Answer» C. imbus | |
| 53. |
A fragment of solid matter which enters the upper atmosphere from outer space almost disintegrating before reaching the earth's surface is |
| A. | eteorite |
| B. | steroid |
| C. | eteor |
| D. | omet |
| Answer» D. omet | |
| 54. |
Logically, what does a continually rising air pressure indicate? |
| A. | dvent of unsettled and cloudy weather |
| B. | dvent of a cyclone |
| C. | ine and settled weather |
| D. | ine and unsettled weather |
| Answer» B. dvent of a cyclone | |
| 55. |
The instrument used for finding out wind-direction is ________ |
| A. | nemometer |
| B. | ind vane |
| C. | ind gauze |
| D. | ygrometer |
| Answer» C. ind gauze | |
| 56. |
The absence of which among the following causes the temperature of the atmosphere to decrease with ascent along with decreasing density of air?I. VegetationII. WaterIII. Carbon dioxideIV. OxygenV. Nitrogen |
| A. | and II |
| B. | II and IV |
| C. | I and III |
| D. | I and V |
| Answer» D. I and V | |
| 57. |
The innermost layer is the core with a radius of about ________ km. |
| A. | 00 |
| B. | 500 |
| C. | 500 |
| D. | 500 |
| Answer» E. | |
| 58. |
When the wind is deflected due to the rotation of the Earth, it is called as ________ |
| A. | eostropic wind |
| B. | olar wind |
| C. | esterlies |
| D. | rade winds |
| Answer» B. olar wind | |
| 59. |
Which are of the following is wrongly characterised? |
| A. | hinook- Canada - winter - warm |
| B. | hamsin – Egypt – spring - hot |
| C. | irocco – Sahara – spring - hot |
| D. | istral - Rhone Valley - summer – cold |
| Answer» E. | |
| 60. |
The contact of two air masses differing sharply in humidity originates: |
| A. | ropical cyclones |
| B. | nter-tropical convergence |
| C. | emperate cyclones |
| D. | ropospheric instability |
| Answer» D. ropospheric instability | |
| 61. |
The hot dry local winds that blow on the eastern side of the Alps Mountain are known as ________ |
| A. | hinook |
| B. | oehn |
| C. | hamsin |
| D. | irocco |
| Answer» C. hamsin | |
| 62. |
The instrument used for measuring relative humidity in air is ________ |
| A. | ygrometer |
| B. | ydrograph |
| C. | antograph |
| D. | arograph |
| Answer» B. ydrograph | |
| 63. |
Mist is a result of which one of the following? |
| A. | ondensation |
| B. | vaporation |
| C. | ublimation |
| D. | aturation |
| Answer» B. vaporation | |
| 64. |
In the northern hemisphere, currents are deflected to their right due to ________ |
| A. | entrifugal force |
| B. | oriolis force |
| C. | yclonic storms |
| D. | one of these |
| Answer» C. yclonic storms | |
| 65. |
Very strong and cold icy winds that blow in the Polar regions are called ________ |
| A. | yphoons |
| B. | ornadoes |
| C. | lizzards |
| D. | olar winds |
| Answer» D. olar winds | |
| 66. |
Which of the following statements characterize the anticyclones?1. Anticyclones are low pressure systems.2. They are characterized by divergent wind circulation.3. They are indicative of dry weather conditions.Select the correct answer using the codes given below |
| A. | and 3 |
| B. | and 3 |
| C. | , 2 and 3 |
| D. | only |
| Answer» B. and 3 | |
| 67. |
When the relative humidity is 50 percent and air temperature is 30°C, a cooling of air mass ________ |
| A. | aises the absolute humidity |
| B. | roduces no change in relative humidity |
| C. | ecreases the relative humidity |
| D. | ncreases the relative humidity |
| Answer» D. ncreases the relative humidity | |
| 68. |
The capacity of the Atmosphere to hold water vapour |
| A. | ncreases as the temperature increases |
| B. | ecreases as the temperature increases |
| C. | ncreases as the temperature decreases |
| D. | ecreases as the temperature decreases |
| Answer» B. ecreases as the temperature increases | |
| 69. |
The core of the Earth is also known as |
| A. | ithosphere |
| B. | esosphere |
| C. | arysphere |
| D. | entrosphere |
| Answer» D. entrosphere | |
| 70. |
The layer of atmosphere which reflects radio waves is |
| A. | onosphere |
| B. | roposphere |
| C. | tratosphere |
| D. | xosphere |
| Answer» B. roposphere | |
| 71. |
What is the correct sequence of the following zonal pressure belts?1. Subpolar low2. Equatorial low3. Polar high4. Subtropical high |
| A. | , 3, 1, 4 |
| B. | , 4, 2, 3 |
| C. | , 4, 1, 3 |
| D. | , 3, 2, 4 |
| Answer» D. , 3, 2, 4 | |
| 72. |
Land masses are heated and cooled much faster than water bodies. Identify the true statements in this regard:I. Land gets heated by conductionII. Water has higher specific heatIII. Only the surface layers of water are heatedIV. Water gets heated by convection |
| A. | , II and III |
| B. | I and III |
| C. | and IV |
| D. | , II and IV |
| Answer» E. | |
| 73. |
The albedo of which one among the following is the highest? |
| A. | irrus cloud |
| B. | umulonimbus cloud |
| C. | elting snow |
| D. | and |
| Answer» B. umulonimbus cloud | |
| 74. |
The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from ________ |
| A. | roposphere |
| B. | esosphere |
| C. | tratosphere |
| D. | onosphere |
| Answer» E. | |
| 75. |
Transfer of surplus heat from the lower latitudes to higher latitudes is done by :I. ocean currentsII. planetary windsIII. tidesIV. waves |
| A. | and II |
| B. | II and IV |
| C. | and IV |
| D. | I and III |
| Answer» B. II and IV | |
| 76. |
Which one of the following conditions is not necessary for precipitation to occur? |
| A. | he air must be warm |
| B. | he air must be saturated |
| C. | he air must be cooled below its dew point |
| D. | he air must contain hygroscopic particles |
| Answer» B. he air must be saturated | |
| 77. |
Condensation is a process which occurs when |
| A. | emperature falls below 0°C |
| B. | bsolute humidity becomes equal to relative humidity |
| C. | emperature in the air parcel remains static |
| D. | elative humidity becomes 100% and more |
| Answer» E. | |
| 78. |
When a descending air contracts and its volume decreases, what happens to its temperature? |
| A. | ts temperature decreases |
| B. | ts temperature increases |
| C. | ts temperature remains constant |
| D. | ts temperature first increases, then decreases |
| Answer» C. ts temperature remains constant | |
| 79. |
In the earth's atmosphere, the atmospheric pressure ________ |
| A. | ncreases with height |
| B. | ecreases with height |
| C. | emains constant with height |
| D. | irst increases and then decreases with height |
| Answer» C. emains constant with height | |
| 80. |
An upper air wind system with very high velocities in certain parts of the atmosphere is called ________ |
| A. | cyclone |
| B. | n anticyclone |
| C. | et stream |
| D. | tsunami |
| Answer» D. tsunami | |
| 81. |
Pampero is ________ |
| A. | cold wind which prevails in Argentina and Uruguay |
| B. | low pressure area in Equator 63° S |
| C. | moisture laden wind which brings rainfall to the west coast of Panama |
| D. | high pressure area which develops first and then leads to the formation of an anticyclone |
| Answer» B. low pressure area in Equator 63° S | |
| 82. |
When can one record the lowest temperature of air? |
| A. | ust before sunrise |
| B. | t midnight |
| C. | t 3 a.m. |
| D. | o fixed time |
| Answer» B. t midnight | |
| 83. |
A devastating Cloud Burst swept over Leh on August 2010. Which one of the following statements with regard to Cloud Burst is not correct? |
| A. | loud Burst is a localized weather phenomenon representing highly concentrated rainfall over a small area in a short duration of time |
| B. | loud Burst occurs due to upward movement of moisture laden air with sufficient rapidity to form cumulonimbus clouds |
| C. | loud Burst occurs only in hilly areas |
| D. | here is no satisfactory technique till now for predicting Cloud Burst |
| Answer» D. here is no satisfactory technique till now for predicting Cloud Burst | |
| 84. |
Density of the Earth's atmosphere is highest in the |
| A. | roposphere |
| B. | tratosphere |
| C. | esosphere |
| D. | onosphere |
| Answer» B. tratosphere | |
| 85. |
The January isotherm taken as a basis for dividing India into tropical and subtropical zones is ________ |
| A. | 1° C |
| B. | 8° C |
| C. | 2° C |
| D. | 5° C |
| Answer» E. | |
| 86. |
The portion of the atmosphere which extends from the earth's surface upto 6-8 miles and experiences decrease in temperature at constant rate is ________ |
| A. | tratosphere |
| B. | ropopause |
| C. | roposphere |
| D. | onosphere |
| Answer» D. onosphere | |
| 87. |
What is the correct sequence of the given clouds from low to high altitudes? |
| A. | tratus, Cumulonimbus, Cirrostratus, Cirrus |
| B. | tratus, Cirrostratus, Cumulonimbus, Cirrus |
| C. | umulonimbus, Stratus, Cirrus, Cirrostratus |
| D. | umulonimbus, Stratus, Cirrostratus, Cirrus |
| Answer» E. | |
| 88. |
Where do all meteorological incidents occur? |
| A. | tratosphere |
| B. | roposphere |
| C. | onosphere |
| D. | xosphere |
| Answer» C. onosphere | |
| 89. |
Which one among the following is a high cloud? |
| A. | irrus |
| B. | umulonimbus |
| C. | imbostratus |
| D. | tratus |
| Answer» B. umulonimbus | |
| 90. |
Cyclone is a system of wind blowing ________ |
| A. | pirally outwards from a high pressure region |
| B. | pirally towards low pressure region |
| C. | n a straight line from high to low pressure region |
| D. | rom Ball of Bengal towards Bangladesh annually |
| Answer» C. n a straight line from high to low pressure region | |
| 91. |
Troposphere is the most warm part of the atmosphere because |
| A. | t is closer to the Sun |
| B. | t contains charged particles |
| C. | t gets warm from the heat of the surface ofthe Earth |
| D. | t produces heat |
| Answer» D. t produces heat | |
| 92. |
Consider the following statements1. Tropical cyclones have circular isobars.2. Tropical cyclones originate entirely within the tropical air mass.3. The intensity and magnitude of hurricanes generally exceed those of typhoons.4. Tropical cyclones are more destructive than the western disturbances.Select the correct answer by using the following codes |
| A. | , 2 and 4 |
| B. | only |
| C. | and 3 |
| D. | and 4 |
| Answer» B. only | |
| 93. |
The study of the processes of atmosphere is called as |
| A. | strology |
| B. | eteorology |
| C. | eismology |
| D. | stronomy |
| Answer» C. eismology | |
| 94. |
Warm dry winds blowing down the east slopes of Rockies are known as ________ |
| A. | istral |
| B. | or' westers |
| C. | oehn |
| D. | hinook |
| Answer» E. | |
| 95. |
Consider the following statements:1. Either of the two belts over the oceans at about 30° to 35° Nand S Latitudes is known as Horse Latitude.2. Horse latitudes are low pressure belts.Which of the statements given above is/are correct? |
| A. | only |
| B. | only |
| C. | oth 1 and 2 |
| D. | either 1 nor 2 |
| Answer» B. only | |
| 96. |
Dew point is ________ |
| A. | mount of actual water vapour present per unit volume of air |
| B. | ncoming solar radiation |
| C. | low pressure system in lower atmosphere |
| D. | temperature at which a given sample of air becomes saturated |
| Answer» E. | |
| 97. |
At which height, the gaseous surrounding has covered the Earth's atmosphere? |
| A. | 00km |
| B. | 50km |
| C. | 00km |
| D. | 00km |
| Answer» E. | |
| 98. |
The continuous circulation of water among the hydrosphere, atmosphere and lithosphere is known as |
| A. | ater circulation |
| B. | ydrologic cycle |
| C. | ydro-equilibrium |
| D. | recipitation |
| Answer» C. ydro-equilibrium | |
| 99. |
Which of the following characterises the Foehn?I. It is warmII. It is humidIII. It is common in the valleys of the northern AlpsIV. It blows in winter |
| A. | , II and IV |
| B. | , II and III |
| C. | , III and IV |
| D. | , II, III and IV |
| Answer» D. , II, III and IV | |
| 100. |
The clouds extending from one side of horizon to other as 3 dark grey sheet having uniform base are called ________ |
| A. | tratus clouds |
| B. | umulus clouds |
| C. | irrus clouds |
| D. | imbus clouds |
| Answer» B. umulus clouds | |