Học liệu điện tử thuộc loại hình dịch vụ nào sau đây trong ứng dụng kĩ thuật điện tử?

Tư tưởng Duy tân khi đi vào quần chúng đã vượt qua khuôn khổ ôn hòa và biến thành cuộc đấu tranh nào?

Vecto cường độ điện trường \(\vec{E}\) tại một điểm trong điện trường luôn

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 word "depletion" in paragraph II is OPPOSITE in meaning to ____.

Trao đổi khí của thủy tức và giun đất thuộc hình thức nào sau đây?

Trong các dãy số $\left(u_n\right)$ sau đây, dãy số nào là cấp số nhân? 

Read the following passage about Our Festival Traditions 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.

Katê Festival

Cultural diversity is a vital aspect of any society, and festivals of ethnic groups play an essential role in preserving the cultural identity of a community. Embracing cultural values through festivals is an important way of staying connected with one community as well as its history and traditions, and a well-known Katê Festival of the Chăm people in Vietnam is an example to prove so.

The Katê Festival, also known as Mbăng Katê, is the biggest yearly festival for the Chăm people in Vietnam. It is a special time of year when they honour important figures in their history and the dead in their families. The Kate Festival takes place on the first day of the seventh month in the Chăm calendar, usually in September or October. It lasts for three days and takes place around three important ancient structures in Ninh Thuận Province: the Po Klaung Yăgrai Tower, the Po Romé Tower and the Po Inû Nagar Temple. All of these places are very important to Champa culture and history.

On the morning of the first day, Cham families take part in processions as they travel to the towers and temple, bringing gifts of fruit, meat and rice. In a special ceremony, the Cham people receive the costumes of the Goddess Po Nagar from the Raglai people, a cultural group with close connections to Champa culture. The Chăm carry the costumes to the temple to celebrate Po Nagar, then they open the gates. Inside the temple, they start bathing the statues of important figures and watching sacred dances. After those performances, people enjoy lively parties until the evening of the festival's second day.

On the last day, people make special offerings to their gods at community houses in their villages and pray for luck and good health for the coming year. Once this is over, there are traditional music performances, and then people do fun activities like playing football and participating in weaving competitions.

In which paragraph does the passage mention activities that take place in villages on the last day of the festival?

Hệ thống chính trị ở nước ta được tổ chức và hoạt động theo những nguyên tắc nào?

Anion M²⁺ có cấu hình electron giống với nguyên tử khí hiếm argon. Số hiệu nguyên tử của nguyên tố M là

Nhiệt độ nào sau đây KHÔNG tồn tại trong thực tế?

Theo số hành trình pittông, động cơ đốt trong có:

Cho bảng số liệu sau:

GIÁ TRỊ XUẤT NHẬP KHẨU HÀNG HÓA CỦA LIÊN MINH CHÂU ÂU GIAI ĐOẠN 2005 - 2020

(Đơn vị: tỷ USD)

(Nguồn: Trang Thống kê Ngân hàng Thế giới)

Cho biết: Các nguyên tắc phát triển bản vững là?

Khi đốt than trong điều kiện thiếu oxygen (\(O_2\)), khí carbon dioxide (\(CO_2\)) sinh ra có thể phản ứng với carbon theo phản ứng thuận nghịch sau: \(CO_2(g) + C(s) \rightleftharpoons 2CO(g)\)

Khi phản ứng trên đạt trạng thái cân bằng, các tác động nào dưới đây làm cân bằng chuyển dịch theo chiều thuận? (Liệt kê phát biểu đúng theo kí hiệu số).

(1) Tăng nồng độ khí \(CO_2\).

(2) Tăng áp suất hệ bằng cách nén khí.

(3) Cho thêm carbon.

(4) Giảm nồng độ khí carbon monoxide (CO).

* Viết đáp án dưới dạng Số, Số (1, 2, 3).

Cho nguyên tố X có số hiệu nguyên tử là 18, vị trí của nguyên tố trong bảng tuần hoàn các nguyên tố hoá học là

Số chỉ của tốc kế cho ta biết đại lượng nào của chuyển động?

Nhận định nào sau đây sai khi bàn về vấn đề cạnh tranh không lành mạnh?