GPS do quốc gia nào sau đây xây dựng, vận hành và quản lí?

Read the following passage about Preserving Today's Soundscapes for Future Generations and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions from 23 to 30.

Sonic time capsules save today's sounds for future people. Scientists capture everyday sounds like streets, birds, and children playing in parks around the world. These recordings help us remember our world before changes. Cities are losing unique sounds as life becomes similar everywhere. Old machines, music, and natural sounds might disappear if not saved. Many important cultural sounds are already lost forever because nobody thought to record them when they still existed.

Sound collectors use microphones to record in different places. They visit forests, oceans, cities, and villages to capture soundscapes throughout different seasons and times of day. They store sounds in digital libraries for years. Museums have rooms for listening to past sounds. These experiences help people understand history in ways books cannot. Some researchers travel to remote locations to record indigenous languages and traditional ceremonies before they vanish from our collective memory.

Climate change is changing world sounds. Melting glaciers, endangered animals, and disappearing languages need saving before they're gone. Researchers believe future people will want to know how our world sounded. These capsules will be important records, like photographs. Scientists study how sounds affect human health. The sounds of nature can reduce stress and improve mental health, which makes preserving natural soundscapes even more important for future generations who may live in highly urbanized environments.

Community projects invite people to record daily sounds. Children learn to listen carefully to the world around them and identify sounds that matter to their community. Old people share recordings from their childhood. People feel emotions when listening to these collections. Artists create music using everyday recordings. These projects help communities protect special sounds for the future. Some cities now have sound preservation policies that protect unique acoustic environments just as they would protect historic buildings or natural landscapes from development.

Which of the following is NOT MENTIONED as a type of sound being preserved in sonic time capsules?

Một trong những học giả tiêu biểu của triết học duy vật thời kì Phục hưng ở Tây Âu là

Nhận xét nào sau đây đúng về tư tưởng Hồ Chí Minh?

Cấu trúc của Trái Đất theo thứ tự từ trong ra ngoài gồm có các lớp

Cho mẫu số liệu thống kê \(\left\{ {6,5,5,2,9,10,8} \right\}\).Mốt của mẫu số liệu trên bằng bao nhiêu? 

Nhận định nào dưới đây là đúng về tình trạng tài nguyên sinh vật nước ta?

Nhóm các nước đang phát triển không có đặc điểm chung nào sau đây về phát triển kinh tế - xã hội?

Cho tập hợp \(A = \{ 0;1;2;3;4;5\} \). Có thể lập được bao nhiêu số tự nhiên chã̃n có bốn chữ số khác nhau?

Read the following passage about the Youth unemployment and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questions.

    [I] Youth unemployment has become a pressing issue in Vietnam in recent years, particularly among graduates. [II] As the economy continues to grow, the influx of young people entering the workforce has outpaced the availability of suitable jobs. [III] Various factors contribute to this challenge, leading to significant consequences for both the economy and society. [IV]

    Many factors push young people into unemployment. For instance, a mismatch between education and job market demands often leaves graduates without the skills that employers require. Furthermore, the competitive job market means that even qualified candidates struggle to secure positions. In contrast, there are opportunities that attract youth to urban centers, where industries are more concentrated, providing potential access to better employment prospects and a higher standard of living.

    The impacts of youth unemployment are far-reaching. First, high unemployment rates can lead to increased poverty levels among young adults, which in turn affects their overall well-being and mental health. Additionally, the lack of stable jobs can result in social unrest, as frustrated youth may engage in protests or other forms of activism. Finally, this phenomenon can lead to a brain drain, where skilled young people migrate abroad in search of better opportunities, further depleting the local talent pool.

    Addressing youth unemployment is a complex challenge that requires a comprehensive understanding of its causes and effects. By implementing effective educational programs, fostering entrepreneurship, and encouraging job creation in various sectors, Vietnam can better support its youth, providing them with opportunities for fulfilling careers and contributing to the economy without sacrificing social stability.

The word “their” in paragraph 2 refers to ____

Trong không gian với hệ tọa độ $Oxyz,$ góc giữa trục $Oz$ và mặt phẳng $(P):x-y+\sqrt{2}z+2\,024=0$ bằng

Cho hình chóp \(\mathrm{S} . \mathrm{ABCD}\) đáy là hình vuông cạnh \(a\). Mặt bên SAD là tam giác đều và nằm trong mặt phẳng vuông góc với đáy. Gọi \(\mathrm{M}, \mathrm{N}, \mathrm{P}\) lần lượt là trung điểm của các cạnh \(\mathrm{SB}, \mathrm{BC}, \mathrm{CD}\). Tính thể tích khối tứ diện CMNP.

Trong quá trình nóng chảy, chất rắn chuyển thành chất lỏng vì năng lượng nhiệt cung cấp làm

Gió đất có cường độ mạnh nhất vào lúc nào?