Các chức năng của Sử học bao gồm

Global warming has severe impact on water supplies.

Read the following passage about studying abroad 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 31 to 40.

Successful students often do the followings while studying. First, they have an overview before reading. Next, they look for important information and pay greater attention to it (which often needs jumping forward or backward to process information). They also relate important points to one another. Also, they activate and use their prior knowledge. When they realize that their understanding is not good, they do not wait to change strategies. Last, they can monitor understanding and take action to correct or “fix up” mistakes in comprehension.

Conversely, students with low academic achievement often demonstrate ineffective study skills. [I] They tend to assume a passive role in learning and rely on others (e.g., teachers, parents) to monitor their studying. [II] For example, low-achieving students often do not monitor their understanding of content; they may not be aware of the purpose of studying; and they show little evidence of looking back or employing “fix-up” strategies to fix understanding problems. [III] Students who struggle with learning new information seem to be unaware that they must extend effort beyond simply reading the content to understand and remember it. [IV] 

Children with learning disabilities do not plan and judge the quality of their studying. Their studying may be disorganized. Students with learning problems face challenges with personal organization as well. They often have difficulty keeping track of materials and assignments, following directions, and completing work on time. Unlike good studiers who employ a variety of study skills in a flexible yet purposeful manner, low-achieving students use a restricted range of study skills. They cannot explain why good study strategies are important for learning; and they tend to use the same, often ineffective study approach for all learning tasks, ignoring task content, structure or difficulty.

Which of the following best summarizes paragraph 2?  

Trong tự nhiên, magnesium có 3 đồng vị bền là ²⁴Mg, ²⁵Mg và ²⁶Mg. Phương pháp phổ khối lượng xác nhận đồng vị ²⁶Mg chiếm tỉ lệ phần trăm số nguyên tử là 11%. Biết rằng nguyên tử khối trung bình của Mg là 24,32. Tính % số nguyên tử của đồng vị ²⁴Mg và ²⁵Mg.

1. % ²⁴Mg = %.

Read the following passage about Asia’s culture 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] Chemicals are present everywhere in our environment, some of which occur naturally, while others are the result of human activities. [II]. They are found in the air, water, and soil, and can have both positive and negative impacts on the ecosystem. Some chemicals, like nutrients, help support life by promoting plant growth [III]. However, others, especially synthetic chemicals such as pesticides, fertilizers, and industrial waste, can be harmful to both the environment and human health. [IV]

The widespread use of pesticides and fertilizers in agriculture has been a major cause of chemical pollution. When these chemicals are used improperly or excessively, they can wash into rivers, lakes, and oceans, leading to water pollution. This runoff can also contribute to the depletion of oxygen in water bodies, a process known as eutrophication. Eutrophication harms aquatic life, disrupting ecosystems and causing the death of fish and other organisms that rely on oxygen.

Toxic chemicals such as heavy metals (e.g., mercury and lead) pose additional threats to the environment and human health. These substances can accumulate in the food chain, starting from plants and animals in contaminated areas and eventually reaching humans. Long-term exposure to these chemicals can lead to serious health issues, including neurological disorders, cancer, and other chronic conditions. Many countries have established regulations to limit the use of harmful chemicals, but enforcement remains a challenge.

Efforts to reduce chemical pollution involve a combination of government regulations, technological innovations, and public awareness. Governments worldwide have introduced stricter rules on the use of hazardous chemicals and encouraged the development of eco-friendly alternatives. These regulations aim to limit the harmful impact of chemicals on the environment, encouraging industries to adopt safer practices. Environmental organizations play a vital role in monitoring chemical pollution, raising awareness, and advocating for cleaner technologies. They work closely with policymakers to ensure effective enforcement of environmental laws. While progress has been made, ongoing efforts are needed to address emerging challenges and ensure a safer and healthier environment for future generations.

The phrase "eutrophication" in paragraph II is CLOSEST in meaning to _______.

Câu nào dưới đây là mệnh đề?

Trong nền kinh tế thị trường, người sản xuất và người tiêu dùng thường xuyên cạnh tranh với nhau để làm gì?

Một học sinh dùng giác kế, đứng cách chân cột cờ 10m rồi chỉnh mặt trước cao bằng mắt của mình để xác định góc nâng (góc tạo bởi tia sáng đi thẳng từ đỉnh cột cờ) với mắt tạo với phương nằm ngang. Khi đó góc nâng đo được \(31^\circ\). Biết khoảng cách từ mặt sân đến mắt học sinh đó bằng 1,5m. Chiều cao cột cờ gần nhất với giá trị nào?

Nếu hai biến cố A và B độc lập và \(P\left( A \right) = 0,7,P\left( {AB} \right) = 0,28\) thì?

Xác định ý đúng: Môi trường tự nhiên bao gồm các thành phần là gì ?

Cho hình thang \(A B C D\) vuông tại \(A\) và \(D\) có \(A B=6 a, A D=C D=\frac{1}{2} A B, M\) thuộc cạnh \(A D\) sao cho \(A M=\frac{1}{3} A D\). Tính \(T=(\overrightarrow{M B}+2 \overrightarrow{M C}) \cdot(\overrightarrow{C D}-\overrightarrow{B D})\).

Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17.

Hi Alex,

a. I appreciate the recommendation for the language app—it’s been so helpful for my French practice.

b. Thanks for the podcast you suggested last week; it was really inspiring to listen to successful language learners share their tips.

c. By the way, have you ever considered joining an online language exchange group? I think it could be fun to try together.

d. I’ve been trying to set aside more time for speaking practice, but it’s a bit challenging with my busy schedule.

e. Still, I’m motivated to improve my French, and I’ll let you know if I find other useful resources.

Write back soon,

Jordan

Các ngành công nghệ số và viễn thám có vai trò như thế nào đối với Sử học?

Ở trạng thái cơ bản, electron trong nguyên tử chiếm các mức năng lượng

Internet là thuật ngữ dùng để chỉ loại mạng nào sau đây?

Biết $\overrightarrow{d_1}$ là độ dịch chuyển 6 m về phía Tây, $\overrightarrow{d_2}$ là độ dịch chuyển 8 m về phía Bắc. Độ dịch chuyển tổng hợp $\overrightarrow{d}$ có độ lớn là

Một lò xo có chiều dài tự nhiên bằng 15cm. Lò xo được giữ cố định tại một đầu, còn đầu kia chịu một lực kéo bằng 4,5N. Khi ấy lò xo dài 18cm. Độ cứng của lò xo bằng

Văn bản công nhận nền độc lập của 13 thuộc địa Anh ở Bắc Mĩ là

In the writer's opinion, ____.

Các đại lý sữa lấy sản phẩm từ những nhà sản xuất về bán lại cho người dùng. Trong trường hợp này, các đại lý sữa đóng vai trò gì trong hoạt động kinh tế của thị trường