Khi cho vài giọt dung dịch Sudan III vào ống nghiệm chứa dịch hạt lạc thì hiện tượng gì sẽ xảy ra?

Khi thả một vật trượt không vận tốc đầu trên mặt phẳng nghiêng có ma sát thì

Dãy các hợp chất có cùng bản chất liên kết hóa học là

Có bao nhiêu loại phần mềm đồ họa?

ASEAN là tên viết tắt của tổ chức liên kết kinh tế khu vực nào?

Phép gán nào sau đây là đúng?

Số proton và số neutron trong hạt nhân nguyên tử \(_{80}^{201}X\) là

Quá trình trao đổi chất của con người thải ra môi trường những chất nào sau đây?

"Những phong tục, tập quán, truyền thống và giá trị văn hóa tốt đẹp của từng dân tộc được giữ gìn, khôi phục, phát huy". Đó là biểu hiện của quyền bình đẳng giữa các dân tộc trên phương diện nào?

a. Chloe: Oh, that's not too bad. My chore is taking out the trash.

b. Chloe: Yeah, but the dishes are important too.

c. Ryan: I wish I had that chore. It's much faster.

d. Ryan: I guess so. My mom says everyone must help.

e. Ryan: I have to do the dishes every night after dinner.

Cuộc khởi nghĩa chống Pháp tiêu biểu ở Campuchia đầu thế kỉ XX mà chính quyền thực dân đã tiến hành đàn áp đẫm máu với hơn 400 người chết là 

Một ô tô khách đang chuyển động thẳng, bỗng nhiên ô tô rẽ sang phải. Người ngồi trong xe bị xô về phía nào?

Read the following passage about urbanization 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.

It's a widely held belief that cities harm the environment. For this reason, many developing countries have imposed restrictions on the movement of people from rural to urban areas and on the size of large cities. But there are problems with this viewpoint. Urbanization that is properly controlled can benefit the environment in a number of ways.

First, urbanization is a highly productive force due to the combination of economies of scale and positive externalities. Over 5.5 times as much is produced in Asia's cities as in its rural areas. Urban agglomeration makes it possible to use fewer resources to produce the same amount of work as non-urban areas. Urbanization therefore reduces the environmental impact. Urbanization is necessary because the service sector depends on a concentration of clients. The growth of service industries, which typically generate less waste than manufacturing, is another environmentally beneficial aspect of urbanization.

Second, for any given population, high urban density has no effect on the environment. According to urban economics studies, density is one of the most significant factors influencing energy consumption. In places with a high population density, public transportation may be more convenient and quicker. City dwellers are more likely to walk or ride a bike instead of drive. Third, the construction, upkeep, and operation of environmentally friendly public services and infrastructure, such as waste management, sanitation, and piped water, are considerably simpler and less expensive in urban areas. More people can now afford to use eco-friendly facilities and services thanks to urbanization.

Fourth, urbanization is driving the development of new technologies, including eco-friendly ones. Eco-friendly vehicles, utilities, and equipment are essential to the green economy's long-term survival. Asia's enormous market will support green innovations in cities because the region's enormous population will provide entrepreneurs with many incentives and opportunities to invest in the development of energy-efficient products. Last but not least, the improved standard of living brought about by urbanization has improved access to housing, food, healthcare, and education. Cities with more residents can invest more in infrastructure, which reduces traffic and improves public health. Urbanization fosters pro-environmental attitudes, especially among middle-class property owners, which greatly aid in the introduction and enforcement of environmental laws and regulations.

Any expanding city will inevitably incur expenses. People are moving in large numbers to Asian cities, and many companies have opened offices there to capitalize on this trend. Examples of industrial operations that contribute to urban sprawl and harm the environment include the generation of electricity, transportation, construction, trash, and waste disposal. Both the advantages and disadvantages of urbanization should be taken into account when assessing its effects on the environment.

Which of the following does the writer mention about elements impacting power usage?

Read the passage and mark the letter A, B, C or D to answer the following questions.
Volunteering offers many of the same social benefits, with the added bonus of helping others and developing useful skills to put on your CV. Plus, students are in a unique position to help, suggests Tom Fox. "They can take their enthusiasm and excitement for opportunities and share their passions, subject knowledge and experience with people." The idea of giving up time for nothing might seem impractical at first, especially once the pressures of study and coursework or exams begin to mount up. However, Michelle Wright, CEO of charity support organization Cause4, suggests seeing volunteering as a two-way street. "I think it is fine for undergraduates to approach volunteering as a symbiotic relationship where doing good is just one part of the motivation for reaching personal and professional goals."
Katerina Rudiger, head of skills and policy campaigns at the Chartered Institute of Personnel and Development (CIPD), says: "Volunteering can be a valuable way of gaining that experience, as well as building confidence, broadening your horizons, becoming a better team player and developing those all- important 'employability skills' such as communication and decision making." Amanda Haig, graduate HR manager, agrees that volunteering can help your employment prospects. "Volunteering can demonstrate positive personality traits and skill sets, such as proactivity, and teamwork," she says.
A positive side-effect of volunteering is improving your time at university by getting involved in the local community. Leaving the student bubble can make your time as an undergraduate much more varied. At Bath Spa University, more than 1,000 students volunteered over the past year, doing everything from working on local environmental projects to helping in schools or assisting the elderly. ”Quite often there can be a divide between students and permanent residents," says students' union president Amy Dawson, "but if students invest a little time now, they will be giving something back to the local community and will reap the benefits in the future."
“You might also find that volunteering helps your studies if you choose the right program. At Lancaster, volunteering is linked into academic modules in some cases", explains Fox. "This has multiple wins. Students get to apply their learning in the classroom and share their interests with children in local schools or community organizations, while schools gain skilled students with a passion for a subject that enthuses their pupils."

What is the most suitable title for this reading?

Từ tư thế thẳng đứng, học sinh A nhún người, hạ thấp trọng tâm xuống 18cm. Sau đó, học sinh đó nhảy lên theo phương thẳng đứng. Khi nhảy, lực trung bình của sàn tác dụng lên học sinh đó lớn gấp bốn lần trọng lượng của học sinh A. Lấy g=9,8m/s².Tốc độ khi học sinh đó tách khỏi sàn gần giá trị nào nhất sau đây?

Số lượng cá tính từ lúc thả trong một cái ao sau thời gian  \(t\) (tính bằng tháng) được cho bởi công thức \(P(t)=\frac{1000}{1+9e^{-t}}\). Sau \(n\) tháng (n là số tự nhiên) thì số lượng cá trong ao vượt hơn 500 con. Số \(n\) nhỏ nhất là bao nhiêu?

Số 620₁₀ khi biểu diễn sang hệ nhị phân cần bao nhiêu byte?

Xác định một từ/cụm từ SAI về ngữ pháp/hoặc ngữ nghĩa/logic/phong cách.

Cần hạn chế bắn pháo hoa hoặc sử dụng loại pháo hoa ít tiếng ồn để giảm ô nhiễm không khí, giảm căng thẳng cho vật nuôi và động vật hoang dã.

Sau khi Chiến tranh lạnh chấm dứt, một trật tự thế giới mới được hình thành có tên gọi là: