Greenhouse Gases, Acid Rain, Ozone Layer depletion Environment Air Pollution: Causes & Solutions String Matching Algorithms: Naive, KMP, Rabin-Karp Bitcoin Basics: Wallets, Transactions, and Double Spending Explained The Foundation of Smart Contract Development on Ethereum Understanding Consensus Mechanisms in Blockchain: Proof of Work, Proof of Stake & Beyond Blockchain Technology Explained: A Beginner's Guide to the Future of the Internet Types of Cryptography: Secret Key and Asymmetric Key Types of Attacks: Attacks can be classified based on their method, target, or intent Fundamental to Cryptography_Introduction introduction of cryptography and its applications Classical Cryptogtaphy Techniques: Ceaser Cipher Need of Security , Security Approaches, Principles of Security Introduction to DBMS(Database Management System) Database Management System_Overall Structure 
