Answer:
Limestone, sedimentary rock composed mainly of calcium carbonate (CaCO3), usually in the form of calcite or aragonite. It may contain considerable amounts of magnesium carbonate (dolomite) as well; minor constituents also commonly present include clay, iron carbonate, feldspar, pyrite, and quartz.
Explanation:

From my opinion, it is always highly recommended that we must know a second language always for better understanding of sake. There are a lots of advantages of learning a second language rather than our regular spoken language. Having a second language helps us to develop more problem solving skills, analytical techniques, critical thinking, improved memory and understanding new grammatical rules and vocabulary. Knowing a second language makes us more enough confident and intelligent than others. Suppose for example, we are traveling to a different country or region in which we are not familiar with their language spoken there i.e it may be (French, Spanish, Italian, Mexican..) then we'll be definitely trying using translator devices. Rather than these occupations, knowing a second language helps to understand better and identify their culture and tradition even more deep. This helps to develop mutual understanding between the people whom we talk in their language and we get to know and understand things even more better. It will also help us to travel in any corner of the world too without any fear of languages. So do try to learn new language is the best and epic hack and life skill which lasts long forever!
Tbh I don't get what this means all the way but it seems like the parents want their children to surpass them or be better than them like have better jobs change the world more than they did that's what I get from this little sentence
The central theme of the poem is <u>how one should attain wisdom</u>. In the end, the poet <u>agrees with</u> the wise man's views.
The focus of the poem is the wise man's advise regarding love, how to give it to a lover and the consequences after giving love from the heart. Though the poet listened to it, he/she decided not to pay attention but later, in older age, he/she agrees with the men's wisdom. The poem reflects how one should attain wisdom: by listening to wise people's advise.