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The correct answer is Indravati National Park.

Key Points

• Bastar is a district in the state of Chhattisgarh.
• The headquarters of Bastar district and Bastar division is Jagdalpur.
• It is known for the beautiful forests and tribal culture,because of this it is called as the cultural capital of the state.
• There are 70 percent tribal communities in the population of Bastar, such as Gond, Maria, Muriya, Bhatra, Halba, Dhruva community.
• Bandhavgadh National Park
• It is spread at vindhya hills in Madhya Pradesh.
• It is known for the Royal Bengal Tigers.
• The density of the Tiger population at Bandhavgarh is the highest known in India.
• Dandeli Sanctuary
• It is located in Uttara Kannada District of Karnataka.
• It is the second largest sanctuary in Karnataka and is located on the banks of River Kali.
• It is surrounded by thick forests and hills of the Kannada District.
• Rajaji National Park
• It is located in the Shivalik range of Himalayas and spread over 820 kms.
• It covers a part of over three districts of Uttarakhand: Haridwar, Dehradun and Pauri Garhwal.
• The park has been created in 1983 by the amalgamation of three sanctuaries - Rajaji Sanctuary and National park (estd. 1948) Motichur sanctuary (estd. 1964) and Chilla sanctuary (estd. 1977).
• Indravati National Park
• It is a national park located in Bijapur district of Chhattisgarh state of India.
• It is located in Bastar Region.
• It is home to one of the last populations of rare wild buffalo.

The correct answer is 18%.

Key Points

• The current population of India is 1,389,123,461 as on March 2021.
• It is is equivalent to 17.7% of the total world population. Option 3 seems fair in this case.
• India is the second most populated country after China. China population is estimated at 1,439,323,776 people.
• The population density in India is 464 per Km².
• The total land area is 2,973,190 Km².
• The median age in India is 28.4 years.
• Top 10 most populated countries in the world-

1. China
2. India
3. The USA
4. Indonesia
5. Pakistan
6. Brazil
7. Nigeria
8. Bangladesh
9. Russia
10. Mexico

• Top 10 countries by area-

1. Russia
2. Canada
3. China
4. The USA
5. Brazil
6. Australia
7. India
8. Argentina
9. Kazakhastan
10. Algeria

The correct answer is Land covered with fresh snow.

Key Points

• Albedo is the ability of a surface to reflect sunlight (solar radiation).
• A perfectly black surface has an albedo of 0 (all radiation is absorbed).
• A perfectly white surface has an albedo of 1.0 (all radiation is reflected).
• Snow and ice have high albedo – much of the sunlight hitting surfaces covered with snow and ice bounces back.
• In contrast, dark earthy surfaces have a low albedo, therefore, they absorb more sunlight.
• Fresh snow reflects up to 95% of the incoming radiation.
• Therefore, fresh snow has a high albedo of .95.
• Land and ocean have low albedos (typically from 0.1 to 0.4) and absorb more energy than they reflect.
• Earth’s average albedo is about 0.3. In other words, about 30 percent of incoming solar radiation is reflected back into space and 70 percent is absorbed.
• Desert Sand has an albedo of  0.40 and Grassland has an albedo of 0.25.

The correct answer is Saturn​.

Key Points

• Saturn
• It is the sixth planet from the Sun and the second-largest planet in our solar system.
• Like fellow gas giant Jupiter, Saturn is a massive ball made mostly of hydrogen and helium.

Mistake Point

• After the discovery of 62 more satellites, It has now 274 moons, which is maximum among all the planets in the Solar system.

Additional Information

• Jupiter is the largest planet in the solar system.
• It is the fastest-rotating planet in the solar system.
• The great red spot is seen in Jupiter.
• Jupiter takes 12 earth years to make one revolution around the sun in the solar system.
• Jupiter has 95  moons now.
• Mars
• It is the fourth planet from the Sun and the second-smallest planet in the Solar System.
• It is also a dynamic planet with seasons, polar ice caps, canyons, extinct volcanoes, etc.
• Mars has two moons- Phobos and Deimos
• Venus
• It is the second planet from the Sun.
• Its thick atmosphere traps heat in a runaway greenhouse effect, making it the hottest planet in our solar system with surface temperatures hot enough to melt lead.
• Venus has no moons.

Important Points

Data : As of June 8, 2023,

The correct answer is 150 × 106 km.

• Earth
• It is the third planet from the Sun.
• It is the fifth largest of the planets in the solar system.
• It's smaller than the four gas giants — Jupiter, Saturn, Uranus and Neptune — but larger than the three other rocky planets, Mercury, Mars and Venus.
• Earth has a diameter of roughly 8,000 miles (13,000 kilometers).
• It is "oblate spheroid," because its spin causes it to be squashed at its poles and swollen at the equator.
• Sun
• It holds 99.8 percent of the solar system's mass.
• The visible part of the sun is about 10,000 degrees Fahrenheit (5,500 degrees Celsius), while temperatures in the core reach more than 27 million F (15 million C), driven by nuclear reactions.
• While Earth orbits the sun, the planet is simultaneously spinning on an imaginary line called an axis that runs from the North Pole to the South Pole.
• It takes Earth 23.934 hours to complete a rotation on its axis and 365.26 days to complete an orbit around the sun.
• The average distance from the sun: 92,956,050 miles (149,598,262 km)

The correct answer is Stormy weather.

Key Points

• Barometer is a scientific instrument used to measure atmospheric pressure.
• The atmosphere is the layers of air wrapped around the Earth. That air has a weight and presses against everything it touches as gravity pulls it to Earth. Barometers measure this pressure.
• Atmospheric pressure is an indicator of weather.
• Meteorologists use barometers to predict short-term changes in the weather.
• A "rising" barometer indicates increas­ing air pressure; a "falling" barometer indicates decreasing air pressure.
• A rapid fall in barometer reading indicates stormy weather**,** it means that a low-pressure system is arriving.

Additional Information

• The simplest kind of barometer is a tall closed tube standing upside down in a bath of mercury (a dense liquid metal at room temperature) so the liquid rises partly up the tube a bit like it does in a thermometer.

The correct answer is Zinc oxide.

Key Points

• The compound zinc oxide (ZnO) is called philosopher's wool.
• ZnO residual has a wool like texture.
• It is said that Alchemists, as part of their rituals, would burn zinc in air and collect the residue, which formed into white woolly tufts.
• Zinc bromide
• It is an inorganic compound with the chemical formula ZnBr₂.
• It is used to prepare dense, clear (solids-free) brine for well completion and workover operations.
• Zinc nitrate
• It is an inorganic chemical compound with the formula Zn(NO₃)₂.
• It is soluble in both water and alcohol.
• It is used as a catalyst and a mordant for dyes, and in liquid fertilizer.
• Zinc Oxide
• It is an inorganic compound with the formula ZnO.
• Zinc oxide topical (for the skin) is used to treat diaper rash, minor burns, severely chapped skin, or other minor skin irritations.
• Zinc chloride
• It is the name of chemical compounds with the formula ZnCl₂.
• It is used as a soldering flux / cleaning agent. Such fluxes are capable of dissolving the oxide layer on the metal surface.

The correct answer is Ethylene.

Key Points

• Ethylene is used for the artificial ripening of green fruits.
• The life of fruit can be divided into three phases: fruit set, fruit development, and fruit ripening.
• Fruit ripening is an irreversible phenomenon involving a series of biochemical, physiological, and organoleptic changes.
• Acetylene gas liberated from calcium carbide accelerates the ripening process.
• Carbon Dioxide
• It is a chemical compound composed of one carbon and two oxygen atoms.
• It is present in the Earth's atmosphere at a low concentration and acts as a greenhouse gas.
• In its solid state, it is called dry ice.
• Ethane
• It is a colourless and odourless gas.
• It is mainly used to produce ethylene, a feedstock to make plastics.
• It is also used to produce ethylene, which is then used by the petrochemical industry to produce a range of intermediate products.
• Hydrogen
• It is the lightest element in the periodic table.
• It is the most abundant chemical substance in the universe.
• It is used to make ammonia for fertilizers, refining metals, and methanol for making artificial materials like plastics.
• It is also used as a rocket fuel where liquid hydrogen is combined with liquid oxygen to produce a powerful explosion.

The correct answer is Formic Acid.

Key Points

• Formic acid is a component of ant venom.
• Depending on the species, ants may attack with stingers or use their mouthparts to bite others and spray formic acid into the wound in doing so.
• Glacial Acetic Acid
• It is a name for water-free (anhydrous) acetic acid.
• Prolonged skin contact with glacial acetic acid may result in tissue destruction.
• The main use of glacial acetic acid in cooking is in form of vinegar.
• Methanol
• It is also known as wood alcohol and methyl alcohol.
• It is a light, volatile, colourless, flammable liquid with a distinctive alcoholic odour similar to that of ethanol.
• It is mostly used to create fuel, solvents and antifreeze.
• Formic Acid
• It is the simplest carboxylic acid.
• It is an important intermediate in chemical synthesis
• The principal use of formic acid is as a preservative and antibacterial agent in livestock feed.
• Stearic Acid
• It is a saturated long-chain fatty acid with an 18-carbon backbone.
• It is a major component of cocoa butter and shea butter.
• It is found in various animal and plant fats.

The correct answer is 7.35 - 7.45.

Key Points

• The pH scale is a logarithmic scale used to specify the acidity or basicity (alkalinity) of an aqueous solution.
• A solution that has a pH of 0 is very acidic with a high concentration of hydrogen ions and a pH of 7 is a neutral solution with equal concentrations of hydrogen ions and their basic counterpart hydroxy ions.
• pH 14 represents a high concentration of hydroxy ions and any solution with pH value 14 is basic in nature.
• Numerically, the pH equals the negative logarithmic value of the concentration of hydrogen ion (H+).
• Substances having a value of pH ranging 0 to 7 on pH scale are termed as acidic and for the value of pH ranging 7 to 14 on pH scale are known as basic solutions.
• The pH values of the most common aqueous solutions are given below-