Loss of upper fertile layer of soil is known as
Pedogenesis
Pedosolization
Soil erosion
None of the above
Match the columns :
Column - $I$ | Column - $II$ |
$(a)$ Camouflage | $(i)$ Dendrobatespumilio |
$(b)$ Batesian mimicry | $(ii)$ Horse- shoe bat |
$(c)$ Warning mimicry | $(iii)$ Monarch butterfly |
$(d)$. Echo -location | $(iv)$ Praying Mantis |
Biogenetic law was putforward by
The best soil for healthy and vigorous growth of the plant is
In which one of the following pairs is the specific characteristic of a soil not correctly matched
Ozone hole means