Explanation The new name of Leningrad is Saint Petersburg. In a referendum held in 1991 The city of Saint Petersburg was founded by Tsar Peter the Great on 27 May 1703. It became the capital of the Russian Empire

Explanation The idiom "against one's grain" means " against one's nature." It indicates something contrary to a person's natural inclination, feelings, or beliefs

Explanation Ernest Rutherford was a New Zealand-born British physicist who came to be known as the father of nuclear physics.

Explanation The first open-heart surgery in India was performed on February 16, 1961 By Dr. K.N. Dastur at BYL Nair Hospital in Mumbai. He used a heart-lung machine developed with the help of engineers at the National Steel Company. The surgery was performed on a 19-year-old girl named Hemlata

Explanation In Excel, formulas must begin with an e quals sign (=). Options A, B, and C are all valid formulas. Option D (C1+15) is not a valid formula because it lacks the = sign.

Explanation Printer is an output device because it produces a hard copy of digital data. Mouse, Scanner, and Keyboard are all input devices used to send data to the computer.

Explanation Shortwave radio operates in the high frequency (HF) band, typically between 3 MHz and 30 MHz . The range 5.9 MHz to 26.1 MHz is commonly used for long-distance communication like international broadcasting.

Explanation Fiber optics uses light to transmit data at high speeds through thin glass or plastic fibers . It is mainly used in communication networks like internet, telephone, and cable TV.

Explanation My car ? is a 2013 Ford Fusion. Note: "A" or "AN" to mention the category of a person or thing. Explanation Do you have the book ? that he gave you? Explanation Do you have a pencil? کیا آپ کے پاس ایک ✏️ پینسل ہے؟ Use "A" and "An" to talk about nonspecific things or people. Explanation My brother has two computers: a PC and a laptop. The PC is quite old but the laptop is brand new. Note: Use "A" or "An" to talk about a person or thing unknown to your listener. Note: Use "The" to talk about a person known to your listener. Explanation The patient ate an orange ? today. مریض نے آج ایک نارنگی کھایا۔ Explanation He will reach within an hour. وہ ایک گھنٹے کے اندر اندر پہنچ جائے گا۔ Explanation My father is a  teacher. میرے والد ایک ٹیچر ہیں۔ Article is used before occupations. Explanation Give me an onion please! مجھے ایک پیاز دیں پلیز Explanation To approbate means اجازت دینا To condemn means رد کرنا Explanation irascible. چڑچڑاپن کرنے والا Determined " پُر عزم "

Explanation My car ? is a 2013 Ford Fusion. Note: "A" or "AN" to mention the category of a person or thing. Explanation Do you have the book ? that he gave you? Explanation Do you have a pencil? کیا آپ کے پاس ایک ✏️ پینسل ہے؟ Use "A" and "An" to talk about nonspecific things or people. Explanation My brother has two computers: a PC and a laptop. The PC is quite old but the laptop is brand new. Note: Use "A" or "An" to talk about a person or thing unknown to your listener. Note: Use "The" to talk about a person known to your listener. Explanation The patient ate an orange ? today. مریض نے آج ایک نارنگی کھایا۔ Explanation He will reach within an hour. وہ ایک گھنٹے کے اندر اندر پہنچ جائے گا۔ Explanation My father is a  teacher. میرے والد ایک ٹیچر ہیں۔ Article is used before occupations. Explanation Give me an onion please! مجھے ایک پیاز دیں پلیز Explanation To approbate means اجازت دینا To condemn means رد کرنا Explanation irascible. چڑچڑاپن کرنے والا Determined " پُر عزم "