The chemical name of quartz is:

Explanation
Silicon dioxide, also known as silica , silicon is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz . *** related question: Which one of the following elements are found common in glass , cement, china clay, and quartz? Silicon   ND11-07-2023

Explanation
Galileo di Vincenzo Bonaiuti de' Galilei was an Italian astronomer, physicist and engineer, sometimes described as a polymath .  Galileo was th e first to point out the obvious: a ll motion is relative. Galileo Galilei is famous for:  he was the first to report telescopic observations of the mountains on the moon, the moons of Jupiter, t he phases of Venus, and the rings of Saturn He invented an early microscope and a predecessor to the thermometer . ND11-07-2023

Explanation
It has been raining since last night. We normally use ' since ' with the present perfect(had been) to describe an action or situation t hat began in the past and continues in the present ND_11_7-2023

Explanation
'He is poor, yet he is honest'. Here ' yet ' will be used as a conjunction . Sentence - Though he is poor, he is honest. Main Clause - He is honest. Subordinate Clause - Though he is poor. ND_11_7-2023

Explanation
we could use ‘ if he were ’, if the events are imagery or improbable. ‘If he were’ can be used when expressing an imaginary situation in the present that is definitely not true.   In the given question, he behaves like a king, which is an imaginary situation   So we have used ‘if he were’, instead of using ‘if he was’ . ND_11_7-2023

Explanation
No, sooner I reached home than it started to rain. نہیں، میں گھر پہنچتے ہی بارش شروع ہو گئی۔ Sentence structure : No sooner + auxiliary + subject + main verb + than + subject + simple past  'No sooner..than' is used to suggest that one action takes place immediately after another action. When 'no sooner..than' is used at the beginning of the sentences then the auxiliary verb goes before the subject. No sooner always introduces the event that occurred first. ND_11_7-2023

Explanation
“ should ” is used to indicate something which is probable . Here in this case Probability of failure on not working hard. The sentence, in this case, will be “ Work hard lest you should fail”.  ND_11_7-2023

Explanation
Ayaan is older than all the other boys in this area. older means :  a comparative of old (  an adjective) ' Older ' is followed by ' than ' whereas ' elder ' is followed by ' to ' in a sentence when there is a comparison ND_11_7-2023

Explanation
A simple sentence contains a subject and a verb, and it may also have an object and modifiers. However, it contains only one independent clause.  'he confessed his crime/guilt' which involves a single subject and predicate yet conveys complete sense is a simple sentence

Explanation
loquacious  بولنے والا reticent  نرمی کرنے والا ND_11_7-2023