Write about the steps taken to encourage tree cultivation outside forests in Tamil Nadu.

Enumerate the uses of State tree of Tamil Nadu.

Which is our National fruit and State tree of Tamil Nadu?

Write about moist conifer and evergreen broad-leaved forests.

Write the negation of the following statements: Chennai is the capital of Tamil Nadu.

Who is known as the 'forest man of India'? Write about the honours provided for his service.

Write in detail about Temperate forest and its types.

Which of the following steps is taken by the Ministry of Enviornment and Forests to protect rivers from water pollution?

a. The top of the atmosphere is at about 400 kV with respectto the surface of the earth, corresponding to an electric field that decreases with altitude. Near the surface of the earth, the field is about 100 Vm^(-1). Why then do we not get a electric shock as we step out of our house into the openy (Assume the house to be a steel cage so there is no field inside!) b. A man fixes outside his house one evening a two metre high insulating slab carrying on its top a large aluminium sheet of area 1m^(2) . Will he get an electric shock if he touches the metal sheet next morning? c. The discharging current in the atmosphere due to the small conductivity of air is known to be 1800A on an average over the globe. Why then does the atmosphere not discharge itself completely in due course and become electrically neutral? In other words, what keeps the atmosphere charged? d. What are the forms of energy into which the electrical energy of the atmosphere is dissipated during a lightning? (Hint: The earth has an electric field of about 100 Vm^(-1) at its surface in the downward direction, corresponding to a surface charge density =-10^(-9) Cm^(-2) ?.