Activity Sheet Class -12 Time - 3 hours Sub - English Marks - 80 SECTION 1 : Prose (Reading for Comprehension, Language Study, Summary, Mind Mapping) Que 1 A Read the extract and do all the activities. [12] There is a revolution in the lifestyle of people which has been affected by Big Data. Our food habits, our health care, our travelling, our scientific pursuits, you name it and everything has changed 360 degrees. The massive data available with us can really work wonders. Friends, do you know what happens when we like a post on Facebook or share a post on WhatsApp, visit any website, make online purchases, or watch videos? Yes, whatever activity we do online is recorded, monitored and analysed. So a huge amount of data is collected. Let me give you an idea of how huge the data might be. Big Data can be petabytes or exabytes of data consisting of billions to trillions of rec