Question Discussion & Solution

The correct answer is Tsitsi Dangarembga.

Key Points

• Zimbabwean writer and filmmaker Tsitsi Dangarembga has won the prestigious German Peace Prize.
• She is the first Black woman to win the Peace Prize of the German Book Trade, which is endowed with $29,100 and has been awarded since 1950.
• Dangarembga is known for her works including the bestselling novel, “Nervous Conditions” and its sequel, “This Mournable Body.”

Important Points

• In 1988, her debut novel Nervous Conditions was the first to be published in English by a Black woman from Zimbabwe.
• In 2020, her novel This Mournable Body was shortlisted for the Booker Prize.
• In addition to the Peace Prize, Dangarembga has also been awarded the PEN Pinter Prize and the PEN International Award for Freedom of Expression in 2021.

Additional Information

• The Peace Prize of the German Book Trade is an international peace prize that is awarded annually by the German Publishers and Booksellers Association.
• The prize has been awarded since 1950 traditionally on the Sunday of the Frankfurt Book Fair which usually takes place in October.
• The prize includes 25,000 euros.

• The Peace Prize acknowledges individuals who have been committed and contributed towards the realization of peace and humanity through their work especially in the field of literature, art, and science.

The correct answer is Barium.

Key Points

• Metal salts commonly used in firework displays include calcium chloride, sodium nitrate, barium chloride, copper chloride, etc.
• The green flame produced in fireworks is due to the presence of Barium.
• The blue flame is due to the presence of Copper.
• The orange flame is due to the presence of Calcium.
• A yellow flame is due to the presence of Sodium.
• Lithium is used to impart a red colour to fireworks.

Additional Information

• Barium (Ba):
  • The atomic number is 56.
  • It is mostly used in drilling fluids for oil and gas wells and also used in paints and glassmaking.
  • It is found in combination with other elements.
  • Barite is one of the major ores of Barium.
• Calcium (Ca):
  • The atomic number is 20.
  • Calcium provides strength to bones and teeth along with vitamins.
  • It also plays an important role in blood formation, muscle contraction, clotting of blood, etc.
  • Milk, eggs, fish, etc. are the main sources of calcium.
• Lithium (Li):
  • Atomic Number is 3.
  • Lithium is the lightest metal on the periodic table.
  • It is widely used in rechargeable batteries for mobile phones, laptops, digital cameras, etc.
• Chromium (Cr):
  • The atomic number is 24.
  • It is used in manufacturing stainless steel.
  • Chromite is the major ore of Chromium.
  • It is a blue-white hard, brittle, and very corrosion-resistant metal and is used to produce several alloys.

The pattern followed here is:

According to the alphabetical positions of the letters,

Hence, ‘JAK’ is the correct answer.

CONCEPT:

• The battery has two terminals positive and negative and its positive terminal is the cathode and its negative terminal is the anode.
  • It works on the principle of Electrochemical Reaction.
  • Italian physicist Alessandro Volta built and described the first electrochemical battery, the voltaic pile, in the year 1800.
  • The lead-acid batteries used in vehicles and lithium-ion batteries used for portable electronics such as laptops and mobile phones.

EXPLANATION:

• A battery converts chemical energy into electrical energy. So option 3 is correct.

​The correct answer is Sirohi.

• The district of Rajasthan, where the tropical dry deciduous forests are not found in Sirohi.

Key Points

• Biodiversity of Rajasthan:
  • Though a large percentage of the total area is desert and even though there is little forest cover, Rajasthan has rich and varied flora and fauna.
  • The natural vegetation is classed as Northern Desert Thorn Forest (Champion 1936).
  • These occur in small clumps scattered in more or less open forms.
  • The density and size of patches increase from west to east following the increase in rainfall.
  • The Northwestern thorn scrub forests lie in a band around the Thar Desert, between the desert and the Aravallis.
  • The Aravalli and the south-eastern region is home to the dry deciduous forests, with tropical dry broadleaf forests that include teak, Acacia, and other trees. Hence Sirohi is the correct answer.
  • The hilly ‘Vagad’ region lies in southernmost Rajasthan.
  • Vagad is the wettest region in Rajasthan, and the most heavily forested.
  • North of ‘Vagad’ lies the Mewar region, home to the cities of Udaipur and Chittaurgarh.
  • All these regions have varied flora and fauna distinct to the region.

Additional Information 

• Plant Biodiversity:
  •  Red data Species - 02
  • Orchids - 14
  • Terrestrial - 08
  • Epiphytic - 06
  • Parasitic Species -10
  • Carnivorous Species - 05
  • Endemic Species -19
  • Medicinal Plant Species -157+