DCMISOCIALSCIENCESCLASSVII

                                         Assignment Class VII                                            Match the columns                   A                                                                             B 1)Physical Environment                              a) Water Bodies 2)Atmosphere                                               b)Layer...

  D.C.M. International School Class -7 th  Assignment-1 Lesson-=1 Environment Write the answers of the following a)      What are the biotic resources? b)      What is hydrosphere? c)      What is barter system? d)     When is environment day celebrated? e)      Name any one natural ecosystem?                                                              (1x5=5) Write the answers of the following a)       What is the importance of lithosphere? b)       Write any two man-made environment? c)       Why we cannot survive without hydrosphere? d)       What is an ecosystem? e)     ...

 D.C.M. International School Assignment of class-7 th   Social Science 1.Answer the following questions:       1.What is the crust? 2.  How many elements make our earth?         3. What are the igneous rocks? 4.   From where are the fossil  fuel are found? 5. Which is the innermost layer of the earth?   (1x5=5) 2.Answer the following in two sentences (     a) Define Lava? (     b) Why igneous rocks are called primary rocks? (     c) Write two features of sedimentary rocks? (     d) Write two uses  of the minerals (     e)   What are the metamorphic rocks?   (2x5=10)     3.Answer the following questions in detail:- (     a) Explain the concept of Rock Cycle?  (3) (     b) Define briefly the different layers of the earth. (3) (     c) How are the sedimentary rocks formed? ...