Read the passage below and answer the questions that follow: A virus is a very tiny type of germ that can make you extremely sick. Viruses only can survive in the living things. Viruses can cause many different types of infectious diseases including the common cold, flu and smallpox. Viruses take over living cells and make many copies of themselves. These new virus particles go on [গণিত] infect other cells. When our body is being affected by a virus, our immune system kicks into action [গণিত] stop or slow it down. At the [গণিত] 2019, the world came across a new type of virus called the Coronavirus (COVID-19). We have known about and studied coronaviruses for decades, but COVID-19 was a new strain [গণিত] humans. COVID-19 is much more serious than the common cold or flu. It spread far and wide from March 2020, causing a pandemic, but timely invention of vaccines has stopped the outbreak of the pandemic. Choose the best option (questions 6-10): Q. Coronavirus was detected first ----.

ক. in 2019

খ. decades ago

গ. in 2020

ঘ. five years ago

উত্তর: decades ago

ব্যাখ্যা: সঠিক উত্তর: B) decades ago তথ্য বিশ্লেষণ: প্যাসেজে স্পষ্টভাবে উল্লেখ আছে, "We have known about and studied coronaviruses for decades"। অর্থাৎ, করোনাভাইরাস সম্পর্কে মানুষ কয়েক দশক আগে থেকেই জানে। ২০১৯ সালে যেটি শনাক্ত হয়েছিল, সেটি ছিল এর একটি নতুন ধরন বা স্ট্রেইন (COVID-19)।

Admission A (বিজ্ঞান বিভাগ) University papers MCQ — Prosthuti প্রশ্নব্যাংক