Page 3 - HA1
P. 3

4.       Give reason for the following:                                    U&A  3

                           a)  Water cannot penetrate through the bedrock.
                           a.  Loamy soil is best for gardening.
                           b.  Earthworms are called the friends of farmers.
               5.       (a) What is percolation rate?                                     U        5

                        (b) What is the formula for calculating percolation rate?

                        (c) What do you mean by water absorption ability of the soil?


                        (d) How do microbes help to improve the fertility of the soil?
                        (e) Why is sandy soil not good for farming?



























































                                                                                                         3
   1   2   3