Blockchain and cryptocurenncies
{"name":"Blockchain and cryptocurenncies", "url":"https://www.quiz-maker.com/QPREVIEW","txt":"Are you curious about your understanding of blockchain and cryptocurrencies? Take this engaging quiz to find out! Whether you're a seasoned trader or just getting started, this quiz is designed to assess your knowledge and familiarity with key concepts in the crypto world.Test your knowledge on mining, wallets, and halving.Share your insights and compare with others!Learn something new along the way.","img":"https:/images/course4.png"}