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The correct answer is number of shells increases.

Key Points:

• Atomic sizes drop as a period moves from left to right.
• The same shell receives progressively more electrons.
• As the atomic number rises, so does the nucleus's attraction to the valence b.
• The atomic size grows as one descends the group, top to bottom.
• This is so that more electron shells can be added when the atomic number rises.

Additional Information:

• The chemical elements are arranged in rows and columns on what is known as the periodic table, or periodic table of the (chemical) elements.
• It is frequently used in physics, chemistry, and other sciences and is frequently regarded as a symbol of chemistry.
• It is a visual representation of the periodic law, which claims that the atomic numbers of chemical elements have a roughly periodic relationship with their attributes.
• The table is divided into four blocks that are about rectangular in shape.
• The table's columns are referred to as groups and its rows are known as periods.
• The periodic table's elements in the same group have comparable chemical properties.

The correct answer is calcium and phosphorus.

Key Points:

• The structure that holds the body up is made of bone.
• Additionally, it supports the body's major organs and anchors the muscles.
• It is a solid, unyielding tissue.
• A dense matrix made of calcium and phosphate molecules contains the bone cells.
• A different kind of connective tissue called a ligament can join two bones together.
• This tissue is extremely flexible.
• Another form of connective tissue is the tendon, which links bones and muscles.

Additional Information:

• Tendons are fibrous tissues with little flexibility and tremendous strength.
• The cells of cartilage are widely spaced.
• Sugars and proteins make up the solid matrix.
• In addition to the nose, ear, trachea, and larynx, cartilage smoothes the surfaces of bones at joints.
• Areolar connective tissue can be found in the bone marrow, around blood vessels and nerves, and between the skin and muscles.
• It supports internal organs, fills empty space inside the organs, and aids in tissue restoration.

The correct answer is Narmada.

Key Points

• River Narmada emerges from Amarkantak Hill of Maikal Range, Madhya Pradesh.
• The mouth of this river is the Gulf of Khambhat (Arabian Sea), Gujarat.
• The mighty Narmada River as well the Son, the Mahanadi, and Arnadoh which is a major tributary of the Godavari all arise in the Amarkantak plateau.
• Major dams on the Narmada river are Sardar Sarovar Dam, Indira Sagar Dam, Omkareshwar Dam, Bargi Dam, etc.

Important Points

The correct answer is Plant and Animal fossils.

Important Points

• Paleontology is the study of past life forms using fossils.
• An example of paleontology is the branch of geology that studies dinosaurs.
• The study of the forms of life existing in prehistoric or geologic times, as represented by the fossils of plants, animals, and other organisms.

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Additional Information

• Volcanology, also spelled vulcanology, the discipline of the geologic sciences that is concerned with all aspects of volcanic phenomena.
• Volcanology, A geologist uses a rock hammer to sample active pahoehoe lava for geochemical analysis on the Kilauea volcano, Hawaii.
• Meteorology is the study of the atmosphere, atmospheric phenomena, and atmospheric effects on our weather.
• The atmosphere is the gaseous layer of the physical environment that surrounds a planet. ... Meteorology is a subdiscipline of the atmospheric sciences, a term that covers all studies of the atmosphere.
• ​Petrology is the study of rocks - igneous, metamorphic, and sedimentary - and the processes that form and transform them.
• Mineralogy is the study of the chemistry, crystal structure, and physical properties of the mineral constituents of rocks.

The correct answer is a - 4, b - 2, c - 1, d - 3.

Important Points

Some Indian States and their dances:

The correct answer is Coach.

Key Points

• Dronacharya award is given by the Ministry of Youth Affairs and Sports, Government of India, for excellence in sports coaching.
• The award is known as after Drona, often referred to as "Dronacharya" or "Guru Drona", a personality from the Sanskrit epic Mahabharata of ancient India.
• The  Dronacharya award contains a medallion, a certificate, and a money prize of Rs 15 lakh(lifetime) and 10 Lakh (regular).

Additional Information

• Major Dhyan Chand Khel Ratna Award:
• It is that the highest sporting award given by the Ministry of Youth Affairs and Sports for the spectacular and top performance within the field of sports by a sportsperson.
• This, award contains a medallion, a certificate, and a money prize of Rs 25 lakh.
• Arjuna Awards:
• This award is given by the Ministry of Youth Affairs and Sports, Government of India to acknowledge outstanding action in National sports.
• Instituted in 1961, the award carries a money prize of Rs 15 Lakh, a bronze sculpture of Arjuna, and a scroll.

The correct answer is Amartya Sen.

Key Points

• Amartya Sen was born into a Brahman family in Santiniketan, Bengal, in India.
• In 1998, was awarded the Nobel Prize in Economics for his work in welfare economics.
• Book by Amartya Sen is Development as Freedom, The Idea of Justice, The Argumentative Indian, Garibi Aur Akaal, Identity & Violence, Inequality Reexamined, The Country of First Boys: And Other Essays, etc.

Important Points

The correct answer is Direct and Progressive. 

Important Points

• Income tax is a Direct tax.
• Direct taxes are progressive, because it is possible to help more people who do not earn as much, and at the same time, mobilize resources from those who earn well. This is what makes them progressive.
• This is the tax that is levied on the annual income or the profits which are directly paid to the government.
• Everyone who earns any kind of income is liable to pay income tax.
• A progressive tax imposes a higher rate on the rich than on the poor. It's based on the taxpayer's income or wealth. It's done to help lower-income families pay for basics like shelter, food, and transportation.
• A progressive tax allows them to spend a larger share of their incomes on the cost of living expenses.
• Examples of progressive tax include investment income taxes, tax on interest earned, rental earnings, estate tax, and tax credits.

The correct answer is Dadabhai Naoroji.

• Dadabhai Naoroji was the first to determine national income.
• He is also known as the grand old man of India.

Key Points

• He was also an unofficial ambassador of India.
• In the UK, he was a member of the house of Commons in 1892.
• He was the first Indian to become a member of the British parliament.
• He was born in Bombay.
• He was the co-founder of the Indian National Congress.
• He was an academician, politician, and trader.
• He propounded the theory of wealth drain from India.
• He was born in a Parsi family.
• Maharaja of Baroda, Sayajirao Gayakwad patronised him.
• The London society in 1865 was launched by him.

The correct answer is Hospitals.

Key Points

• Social infrastructure refers to facilities and services that improve the quality of life and promote social well-being, such as healthcare, education, and housing.
• Hospitals are a prime example of social infrastructure as they provide essential healthcare services to the population.
• Social infrastructure ensures access to basic health services, contributing to the overall development and productivity of a nation.
• Hospitals play a critical role in reducing mortality rates, managing diseases, and improving public health outcomes.
• Other examples of social infrastructure include schools, libraries, community centers, and sanitation facilities.

Additional Information

• Social Infrastructure vs. Physical Infrastructure:
• Social infrastructure focuses on services and institutions that enhance human capital (e.g., hospitals, schools).
• Physical infrastructure pertains to tangible assets like roads, railways, airports, and bridges.
• Healthcare Infrastructure:
• Healthcare facilities such as hospitals, clinics, and laboratories are vital components of social infrastructure.
• Public healthcare systems aim to provide affordable and accessible medical services to all citizens.
• Education Infrastructure:
• Schools, colleges, and universities are examples of social infrastructure that foster education and skill development.
• They contribute to economic growth by enhancing the knowledge base of a society.
• Government Initiatives:
• Programs like Ayushman Bharat aim to strengthen healthcare infrastructure in India.
• Investments in social infrastructure are critical for achieving sustainable development goals (SDGs).