MCQ Class VII Social Science Ch-4

                                       Social Science

                       Class VII (DAV Publication)

                         MCQ Class VII Social Science

     Ch- 3 (The Surface and interior of the earth)

 A.Tick the correct option.

Q1. In normal lapse rate, temperature decreases at the rate of 1°C with every--------

(a)165 m ascend                                                             
(b) 175 m ascend
(c)185 m ascend                                                              
(d) 195 m ascend

Q2. Which layer is safe for flying aircrafts

(a)Troposphere                                                            
(b) Stratosphere
(c)Mesosphere                                                              
(d) Thermosphere

Q3. The role of ion-particles in the ionosphere is to---------

(a)Absorb ultra violet rays           
(b) Enable wireless communication
(c)Burn meteors                             
(d) Enable rainfall

Q4. Which one of the following is the main cause of global warming

(a)Air pollution                                                        
(b) Water pollution   
(c) Soil pollution                                                     
(d) Land degradation

Q5. Smog causes-----------

(a)Breathing problems                            
(b) Purification of air
(c)Heavy rainfall                                       
(d) Reduction in temperature  
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