Chọn ý đúng: Khi bón phân hóa học cần đảm bảo nguyên tắc gì?
Lựa chọn loại phân bón phù hợp.
Bón đúng thời điểm và đúng liều lượng.
Cần cân nhắc đến yếu tố thời tiết, khí hậu.
Cả 3 đáp án trên
Hãy suy nghĩ và trả lời câu hỏi trước khi xem đáp án
Đáp án đúng: D
Giải thích:
Khi bón phân hóa học cần đảm bảo 3 nguyên tắc:
1. Lựa chọn loại phân bón phù hợp.
2. Bón đúng thời điểm và đúng liều lượng.
3. Cần cân nhắc đến yếu tố thời tiết, khí hậu.
Tài liệu "Bộ Đề Kiểm Tra Học Kì I - Năm Học 2022-2023 - Công Nghệ 10" tổng hợp các đề kiểm tra từ các trường THPT trên toàn quốc, được biên soạn theo đúng chương trình học. Đề thi bao gồm các dạng bài trắc nghiệm và tự luận, tập trung vào các chủ đề trọng tâm: công nghệ và đời sống, quy trình công nghệ, vật liệu kỹ thuật, và ứng dụng công nghệ trong sản xuất và đời sống. Tài liệu giúp học sinh ôn tập hiệu quả, củng cố kiến thức, rèn luyện kỹ năng và tự tin đạt kết quả cao trong kỳ thi học kỳ I.
Câu hỏi liên quan
Quy luật nào chủ yếu do ngoại lực tạo nên?
Vận động nội lực theo phương nằm ngang không làm nên điều gì?
Chủ thể trong nền kinh tế thị trường định hướng xã hội chủ nghĩa, Nhà nước có vai trò quản nền kinh tế thông qua thực hiện chức năng quản lí nhà nước về kinh tế được gọi là gì?
Điều gì làm thị trường lao động thay đổi?
Cho A là một tập hợp tùy ý. Các khẳng định sau đúng hay sai?
"Biết đánh giá cơ hội kinh doanh, lựa chọn và chớp cơ hội trong kinh doanh". Đó là biểu hiện cho năng lực nào của người kinh doanh?
Tôn giáo được độc tôn ở thế kỷ XIX là:
Một máy tạo rung được sử dụng để tạo ra sóng trên dây.
Cho khoảng cách từ ròng rọc đến máy tạo rung là 90cm. Bước sóng của sóng trên là:
Sau khi thực hiện các câu lệnh sau, mảng A như thế nào?
>>> A = [1, 2, 3, 4, 5]
>>> A. remove(2)
>>> print(A)
Những hoocmon nào kích thích sinh trưởng ở thực vật?
Cho tập hợp A=[−2;2]. Tập hợp A∩N bằng
Read the following advertisement and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6.
KEEPING PETS – THE PERFECT COMPANION!
Are you thinking about (1) _____ a pet? Pets bring joy and companionship into our lives, making each day more exciting and (2) _____. Imagine coming home to a loyal dog or a playful cat. They are more than just animals—they are (3) _____ for you and your family.
Keeping pets requires responsibility, but the rewards are immeasurable. Choose a pet (4) _____ your lifestyle and home environment. For example, a small apartment is ideal for cats, while dogs might need more space to roam.
Remember, pets thrive (5) _____ love, care, and proper training. Taking the time to (6) _____ their needs is essential for a happy and healthy pet.
Start your journey to unconditional love with the perfect pet today!
Read the following passage about endangered languages and mark the letter A, B, C or D on your answer sheet to indicate the best answer to each of the following questionsfrom 31 to 40.
[I] Social media has become a dominant force in modern communication, offering a range of benefits and challenges. [II] It has revolutionized the way people interact, share information, and even form relationships. [III] While these platforms offer opportunities for connection and expression, they also have their drawbacks. [IV] For instance, excessive use of social media has been linked to a range of negative effects, including mental health issues, social isolation, and decreased productivity. [V] However, when used responsibly, social media can also offer a variety of positive outcomes, such as the ability to stay connected with loved ones, network professionally, and access valuable information and resources.
One of the major benefits of social media is its ability to keep people connected. For example, individuals who live far apart can maintain close relationships through regular communication on these platforms. Social media also facilitates professional networking, allowing users to connect with potential employers or clients, and enabling companies to promote their products and services to a global audience. Additionally, platforms like Facebook, Twitter, and Instagram provide a space for people to share ideas, opinions, and creative work, fostering a sense of community and collaboration.
Despite these advantages, there are serious concerns about the negative impact of social media, particularly on mental health. Studies have shown that excessive social media use can contribute to feelings of anxiety, depression, and loneliness. This is often attributed to the unrealistic portrayals of life that are commonly shared on these platforms, leading to comparisons that can make individuals feel inadequate or left out. Furthermore, constant exposure to negative news or online bullying can exacerbate these feelings and contribute to long-term psychological stress.
Another issue with social media is its potential to distract people from their daily responsibilities. With notifications constantly popping up and endless streams of content to scroll through, individuals may find it difficult to focus on tasks such as work, school, or personal obligations. This can result in decreased productivity and a lack of attention to important matters.
Ultimately, the impact of social media depends on how it is used. If individuals are mindful of their usage patterns and take steps to limit their time on these platforms, they can enjoy the benefits of staying connected and informed without the negative consequences. Parents, educators, and mental health professionals can also play a role in helping young people develop healthy habits and manage their social media use effectively.
What can be inferred from the passage?
Although noise, commonly defined as unwanted sound, is a widely recognized form of pollution, it is very difficult to measure because the discomfort experienced by different individuals is highly subjective and, therefore, variable. Exposure to lower levels of noise may be slightly irritating, whereas exposure to higher levels may actually cause hearing loss. Particularly in congested urban areas, the noise produced as a by-product of our advancing technology causes physical and psychological harm, and detracts from the quality of life for those who are exposed to it.
Unlike the eyes, which can be covered by the eyelids against strong light, the ear has no lid, and is, therefore, always open and vulnerable; noise penetrates without protection. Noise causes effects that the hearer cannot control and to which the body never becomes accustomeLoud noises instinctively signal danger to any organism with a hearing mechanism, including human beings. In response, heartbeat and respiration accelerate, blood vessels constrict, the skin pales, and muscles tense. In fact, there is a general increase in functioning brought about by the flow of adrenaline released in response to fear, and some of these responses persist even longer than the noise, occasionally as long as thirty minutes after the sound has ceased.
Because noise is unavoidable in a complex, industrial society, we are constantly responding in the same way that we would respond to danger. Recently, researchers have concluded that noise and our response may be much more than an annoyance. It may be a serious threat to physical and psychological health and well-being, causing damage not only to the ear and brain but also to the heart and stomach. We have long known that hearing loss is America's number one nonfatal health problem, but now we are learning that some of us with heart disease and ulcers may be victims of noise as well. Fetuses exposed to noise tend to be overactive, they cry easily, and they are more sensitive to gastrointestinal problems after birth. In addition, the psychic effect of noise is very important. Nervousness, irritability, tension, and anxiety increase affecting the quality of rest during sleep, and the efficiency of activities during waking hours, as well as the way that we interact with each other.
What does the word “it” in paragraph 1 refer to?
Theo quy định pháp luật, công dân sẽ có hành vi vi phạm quyền được pháp luật bảo hộ về tính mạng sức khỏe khi nào?
Chị C là nội trợ thường xuyên đi siêu thị để mua thực phẩm và các đồ gia dụng trong nhà. Trong trường hợp này chi C đóng vai trò là chủ thể gì của nền kinh tế?
Giá trị nhiệt độ đo được theo thang nhiệt độ Kelvin là 293 K. Theo thang Celsius, nhiệt độ này tương đương với bao nhiêu oC?
Read the following passage about the Koromi trend 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.
[I]. If you’ve done any traveling at all, you’re likely quite aware that customs and etiquette differ from one culture to another: what may be perfectly innocuous in one place may be hideously offensive in another, and vice-versa. [II]. Granted, even if you haven’t traveled at all, you’re probably aware of the fact that certain types of behavior aren’t exactly acceptable in other countries: belching at the table may be a sign of gratitude in some places, but in most areas of North America and Europe, such a display will earn you a fair bit of ire. [III]. Whether you plan on traveling to any of the places listed below or just doing business with a foreign client, it’s important to educate yourself on the standards of politesse and etiquette beforehand-the last thing you want to do is offend someone with any ignorant, boorish behavior. [IV]. Here’s how to be polite in different countries.
When dealing with Japanese clients, be sure to dress fairly conservatively, and make sure that you bow lower than they do upon meeting them. Accept gifts with both hands and open them later, not in front of the giver, and never blow your nose at the dining table. Avoid asking and answering direct questions: it’s better to imply rather than ask, and to answer with vagueness during conversations.
In Kenya, when greeting someone older or of a higher status than yourself, grip their right wrist with your left hand while shaking it; it’s a sign of respect and deference. Do ask questions about their health, family, business etc. before getting to major topics, as skipping these niceties is seen as impolite. If sharing meals, do not begin eating until the eldest male has been served and starts to eat.
Turning down an alcoholic drink is considered terribly offensive in Russia, so it’s a good idea to fortify yourself with some greasy food before heading out for a meal with Russian or Ukrainian clients. Don’t smile at strangers or they’ll think you’re deranged, and when paying for items, place your money on the counter rather than trying to hand it directly to the cashier.
The word "they" in paragraph II refers to ____.
Cho hệ bất phương trình: \(\left\{ \begin{matrix} 2x+y>1 \\ x+y>3 \\ \end{matrix} \right.\), điểm nào sau đây không thuộc miền nghiệm của hệ bất phương trình đã cho?
Số hiệu nguyên tử Z của nguyên tố X, A, M, Q làn lượt là 6, 7, 20, 19
Nhận xét nào sau đây đúng?