Phosphorus(Atomic no. 15) has its electrons arranged in a configuration of 2,8,5. Now, orbits are stable when they are full. In this case, The outer orbit must have eight electrons for stability in combining with other elements, also known as valency. So one can either add 3 electrons to the outer orbit or take away 5 electrons with equal ease. So Phosphorus has a valency of 3 or 5.

The Internet started off with research into what was then known as packet switching as early as the 1960s. Packet switching was thought of a better and faster method to transfer data than the hardware solution to the problem, i.e., the circuitry. The packet switching technology was essential to the development of ARPANET by the United States Military. ARPANET is considered the first known group of interconnected computers aka the internet.

We are living in an IT revolution era. Indispensability of internet and computers cannot be denied. The modern youth and children don't have any other option. Internet and computers have already taken over each and every field. Tell me an area or sphere where internet and computers are not being used! Education, industry, finance, defense, teaching, learning, research, medicine, accounting, entertainment, internet, online teaching, telecommunication, media, and space research and exploration. It is internet and computer everywhere. The modern world will look void without internet and computers. Internet and computers have created such an order in every field. They are so adroitly efficient in data storing and handling. They have man's life much more organized, systematic, simple, colourful, and awesomely efficient.  

Internet has become ubiquitous owing to its versatility. What is it not that you can't do with internet? It is the god of the modern era! Naturally the field of education has also been influenced positively by use of internet. It has made the learning in classrooms much more convenient, easier, simpler, colorful, fun-filled, and efficient. Expert teachers teach students using smart boards and interactive whiteboards. Internet has enabled both students and teachers to process learning data many times faster than was possible in a traditional classroom.

The internet stores the teaching and learning data systematically which can so easily be accessed by anyone who wants it. Internet has further facilitated sharing of knowledge available abundantly on all the subjects. School websites now provide all the educational information required by parents and students. Aspiring students can look up the internet for any information and knowledge they require while studying or doing assignments. Internet and computers have really made education quite romantic. There is a modern Renaissance in education owing to computers. and internet.

HRD Minister Ramesh Nishank announced a major CBSE syllabus reduction for the new academic year 2020-21 on July 7 which was soon followed by an official notification by CBSE on the same.

Considering the loss of classroom teaching time due to the Covid-19 pandemic and lockdown, CBSE reduced the syllabus of classes 9 to 12 with the help of suggestions from NCERT.

The CBSE syllabus has been rationalized keeping intact the learning outcomes so that the core concepts of students can be retained.

Deleted syllabus of CBSE Class 10 English

True

The gallbladder stores the bile juice temporarily because the bile is stored in it until the food material reaches the stomach.  The gallbladder is a small pouch which is present just under the liver. Gall bladder has a significant role in the digestion of food. It is a balloon shaped organ reserved for the storage of substance formed by the liver.

Double coincidence of wants occurs when two individuals swap (exchange) their goods, in exchange for one another. This is also referred to as the 'perfect barter exchange'. In such cases, both the individuals are happy to exchange their good or commodities. 

Examole:

A shoe manufacturer wants to sell shoes in the market and buy wheat. The shoe manufacturer
will first exchange shoes that he had produced for money, and then exchange the money for wheat. Imagine how difficult it would be if the shoe manufacturer had to directly exchange shoes for wheat without using money. He would have to look for a wheat growing farmer, who not only wants to sell wheat but also wants to buy the shoes in exchange. That is, both parties have to agree to sell and buy each other’s commodities. This is known as double coincidence of wants.

We will check the result
13 × 1 7 × 19 × 23 + 13 × 23
221 × 437 + 299
96577 + 299
96876
Let's do factorization
96876 = 2 ×  2× 3 × 3 ×  3× 3  ×13 × 23
 It is divisible by numbers other than 1 and the number itself.
So, it is a composite number
 

पंजाब में मिट्टी में लवणता और क्षारीयता में वृद्धि के कारण जलभराव का मुख्य कारण भूमि का क्षरण है। पंजाब, हरियाणा, उत्तर प्रदेश ऐसे राज्य हैं जो भूमि क्षरण के मुद्दे का सामना कर रहे हैं।

That is, the RDA is derived from the nutrient requirement so if an EAR cannot be set, no RDA will be set. The EAR is the daily intake value of a nutrient that is estimated to meet the nutrient requirement of half the healthy individuals in a life stage and gender group.

Arbitrary law is a law which has been passed by the legislator to fulfil his motives or simply out of his will. Rowlatt act was a classic example of arbitrary law which allowed the British government to imprison anybody without trial. Another example of the arbitrariness that continued to exist as part of British law is the Sedition Act of 1870.

A recurring appointment repeats on a regular basis (for example, every Tuesday). This is different from a recurring meeting, which involves inviting individuals. Open your calendar. Click on New Appointment or double click on a desired date and time in your calendar to open a new Appointment window.

Word wrapping is when a line of text automatically "wraps" to the next line when it gets to the end of a page or text field. This is different than a "word rap," which involves rhyming words to a rhythmic beat, though that may be more fun than typing. Most word processing programs use word wrap to keep the text within the default margins of the page. Without the word wrap feature, text would continue on one line until the user pressed "Enter" or "Return" to insert a line break.

Most programs that incorporate word wrap take the first word that does not fit on a line of text and move it to the beginning of the next line. Advanced word processing programs can hyphenate long words at appropriate places. While it is uncommon, sometimes a word, or string of characters ,will take up more than one line. In this case, the word wrap feature will simply continue the string of characters onto the next line.

Economic growth and development is less in Democracies because:

a. Democratic form of governments are characterized by political instability, if the government loses majority it may fall and may not be able to complete its full term. A dictatorial regime is stable.

b. Likewise, government changes after certain period of time, there is no continuy in economic policies governing the country. A dictatorial regime may follow one policy for a longer period of time.

c. Democracy involves thorough deliberation and discussion, which results in delays in decision making process. There is only one person who takes decision for the entire country. It results in quick decision making.

d. There are large number of people involved in the decision making process as a result it becomes difficult to accommodate diverse interests and viewpoints. 

e. Democracies involve corruption, favoritism , nepotism, red tapism at all levels which hampers country's growth. In a dictatorial regime these aspects are checked by a dictator.

f. Modern democracies are capitalist democracies where few accumulate wealth, and rest are deprived of fair share. It is the capitalist class which influences decision making. In a dictatorship, it is the dictator who decides policy for the entire country which involves more state controlled policies than capitalist controlled.

(i) सूफी संतों का मत था कि ईश्वर एक है और हम सभी उसके बच्चे हैं। राम, कृष्ण और मोहम्मद भगवान के अवतार नहीं थे। वे सरल, श्रेष्ठ और महान आत्मा थे।

(ii) सूफी संतों का मत था कि मानव जाति का प्रेम केवल ईश्वर का प्रेम है। क्योंकि भगवान केवल उन्हीं को प्यार करते हैं, जो उनकी रचना से प्यार करते हैं।

(iii) सूफी संतों ने धर्म की तुलना में कार्रवाई की श्रेष्ठता पर जोर दिया। उनका मत था कि मनुष्य अपने श्रेष्ठ धर्म के बजाय अपने नेक कार्यों से जाना जाता है।

(iv) ईश्वरत्व प्राप्त करना सभी धर्मों का मुख्य उद्देश्य है। इसलिए सभी धर्म बराबर हैं।

(v) गुरु या पीर को अधिक सम्मान दिया जाना चाहिए।

(vi) व्यक्ति को शांति और अहिंसा में विश्वास करना चाहिए। मानवता के लिए प्रेम अहिंसा का आधार है।

a n s w e r

Aniline (ph−NH2​) can be prepared from benzene using conc.H2​SO4​/conc.HNO3​ followed by Sn/HCl as shown in the above image.

 P2P stands for "Peer to Peer." In aP2P network, the "peers" are computer systems which are connected to each other via the Internet. Files can be shared directly between systems on the network without the need of a central server. In other words, each computer on a P2P network becomes a file server as well as a client.