Question1) Answer all the questions:
i) Explain the biotic factors which influences the life of plant.
ii) Provide a graphical presentation of serve.
iii) Explain the characteristics of Halophytes in detail.
iv) Describe the causes of soil erosion.
v) Write down the factors affecting populatgion growth.
Question2) Describe the various stages of Xerarch.
Question3) Enumerate the external and internal adaptations met within hydrophytes.
Question4) Explain the sources of water pollution.