This page provides complete NCERT Class 11 Fundamentals of Physical Geography Chapter 7 questions, including MCQs, one-word and descriptive questions. All questions are extracted line-by-line from NCERT for full syllabus coverage and exam preparation.
The second major section explains the vertical structure of the atmosphere, divided into five main layers based on temperature characteristics. The troposphere, the lowest layer where all weather events occur, is identified as the most crucial for biological activity.
Above it lie the stratosphere (containing the protective ozone layer), the mesosphere, the thermosphere/ionosphere (which reflects radio waves), and the outermost exosphere that merges with space.
The chapter concludes by listing the primary elements of weather and climate:temperature, pressure, winds, humidity, clouds, and precipitation:which form the basis for further study in subsequent chapters.
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Which gas is meteorologically important because it is transparent to incoming solar radiation but opaque to outgoing terrestrial radiation? (Pg. 2)
Where is the concentration of water vapour in the air typically the highest? (Pg. 2)
In which regions is the concentration of dust particles generally higher? (Pg. 3)
What is the rate of temperature decrease (lapse rate) within the troposphere? (Pg. 3)
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Which layer of the atmosphere contains electrically charged particles (ions) that reflect radio waves? (Pg. 3)
(Exercise) Which one of the following gases constitutes the major portion of the atmosphere? (Pg. 4)
(Exercise) Atmospheric layer important for human beings is: (Pg. 4)
(Exercise) Sea salt, pollen, ash, smoke soot, fine soil are associated with: (Pg. 4)
(Exercise) Oxygen gas is in negligible quantity at the height of: (Pg. 4)
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(Exercise) Which gas is transparent to incoming solar radiation and opaque to outgoing terrestrial radiation? (Pg. 4)
The ozone layer, found between 10 and 50 km, absorbs ______ rays from the sun. (Pg. 2) Page 64
Dust and salt particles act as ______ nuclei for water vapour condensation. (Pg. 3) Page 65
The lowermost layer of the atmosphere, where all weather phenomena occur, is the ______. (Pg. 3) Page 65
The zone separating the troposphere from the stratosphere is called the ______. (Pg. 3) Page 65
The layer above the thermosphere that gradually merges with outer space is the ______. (Pg. 4) Page 66
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