Explain OSI Reference Model in detail.

Explain Cyber Attack Recovery Procedure in detail with example.

: Write and explain any five strategies for mitigating cyber attacks.

Explain cyber security at network and application layer of a typical IT system in detail.

Explain the importance of Confidentiality, Integrity and Availability of a typical networked IT system.

“Water Harvesting is one of the effective measures to combat drought.” Explain this statement with suitable arguments.

“Education for environmental awareness is essential for the younger generation as well as for the older generation.” Explain the statement with suitable examples.

Explain the causes of ozone depletion? How do ultraviolet rays affects human health, animals, plants, micro-organisms, water and air quality.

Define natural calamities and its types with suitable examples.

Explain the biocentrism and ecocentrism in context of human’s attitude towards nature?

What is ecological succession? Explain the types of succession with suitable diagrams.

What is lentic and lotic ecosystem? Explain these two with suitable examples.

Public Health

Biological Oxygen Demand

Incineration

Seed Bank

“Biosphere reserves are internationally recognised areas established to promote and demonstrate a balanced relationship between Humans and the Biosphere.” Elaborate this statement in the context of conservation of nature?

“As humans civilisation progressed, man started altering the environment in the pursuit of creating an economic, social and cultural environment of his own choice. This slowly resulted in the depletion of natural resources and degradation of environment.” Explain it in context of national legislations of water acts?

Explain the human-environment relationship by taking examples of biotic and abiotic components?

What is Disposal of waste? Why segregation of waste is needed?