Question Discussion & Solution

• A CASE tool is a generic term used to denote any form of automated support for software engineering, in a more restrictive sense a CASE tool can mean any tool used to automate some activity associated with software development
• Some of the CASE tools assist in phase-related tasks such as specification, structured analysis, design, coding, testing, etc. and others to non-phase activities such as project management and configuration management
• The primary objectives of using any CASE tool are:

1. To increase productivity.
2. To help produce better quality software at a lower cost.

The Venn diagram that best represents the relationship between Uttar Pradesh, Jhansi, Goa is shown below:

Jhansi is a city of Uttar Pradesh.

Whereas, 

Uttar-Pradesh and Goa both are different States of India thus will come as a separate circle.

Hence, Option (4) is correct.

Additional InformationUttar-Pradesh:

• The Dudhwa National Park is located in Terai and is spread over an area of 490 sq.km. The national park also has the Dudhwa tiger reserve within its premises.
• National Chambal Sanctuary is also known as the National Gharial Wildlife Sanctuary that is home to the endangered gharial or small crocodile. The river Chambal follows through this sanctuary as the hills and ravines build many sandy beaches inside the park.
• Situated in the district of Pilibhit in Northern Uttar Pradesh, Pilibhit Tiger Reserve is one of the 41 Project Tiger reserves of the country. The forest cover here is dense which is why the tigers have a good eco-system to survive in with enough prey. The reserve is home to over 127 different kinds of animals and 556 kinds of birds.
• The Nawabganj bird sanctuary also popularly known as Shahid Chandra Shekhar Azad bird sanctuary is situated in the Unnao district of Uttar Pradesh. The sanctuary is famous for being the temporary home of more than 250 kinds of birds. The birds come all the way from former USSR countries.
• Chandraprabha Wildlife Sanctuary is located near the city of Varanasi, Uttar Pradesh. The sanctuary is not as famous as the other ones in the area but the place is rich in scenic landscapes and waterfalls. The two famous waterfalls are; Rajdari and Devadari. The variety of animals found here are the wild boar, Indian gazelle and blackbucks.

Goa:

• Spread over an area of 211 square kilometres, Netravali Wildlife Sanctuary is one of the newly established wildlife sanctuaries in Goa.
• With the number of Royal Bengal tigers that can be found at the Mhadei Wildlife Sanctuary, authorities are considering to promote the place as one of the Project Tiger Reserves. Among the very popular sanctuaries of Goa, it is located near Valpoi town in Sattari Taluka.
• The Bhagwan Mahaveer Sanctuary is the biggest wildlife sanctuary in Goa and is located in Sanguem taluka. It spreads over an area of 240 square kilometres. Along with the stunning landscapes of the Western Ghats, the sanctuary also encompasses the very famous Dudhsagar Falls and a number of temples from the era of the Kadamba Dynasty. You can also visit the famous Devil’s Canyon View Point, a perfect place to spot wildlife and birds.
• Set up in 1968 and spread over an area of 105 square kilometres, the Cotigao Wildlife Sanctuary is situated in the southern part of Goa, near Canacona Taluka.
• The core area of Bhagwan Mahaveer Sanctuary is known as the Molem Wildlife Sanctuary. It is located in the Sanguem region and is claimed to house up to 120 different species of birds such as drongo, golden oriole, the great Indian hornbill, three-toed kingfisher, wagtails, and fairy bluebird.

Explanation:

• One of the most important contributors to the early construction of the periodic table was Russian scientist Dmitri Ivanovich Mendeléev.
• Mendeleev Periodic Table was introduced in 1869, following the rejection of Newlands Octave Law.
• Elements were arranged in Mendeleev's periodic chart according to their fundamental property, atomic mass, and chemical characteristics.
• Only 63 elements were known at Mendeleev's time.
• Mendeleev discovered that the properties of elements are the periodic function of their atomic mass in a periodic pattern after analysing their qualities.
• He ordered the elements in the periodic table so that those with comparable properties were in the same vertical columns.
• He developed a periodic law based on this finding, which states:- “The periodic function of an element's atomic mass is its property.”
• Demerits -  
  1. He couldn't find hydrogen in the periodic chart.
  2. Moving from one element to the next caused an irregular increase in atomic mass. As a result, the amount of elements that have yet to be identified is unpredictable.
  3. Isotopes were not considered. Later on, isotopes of elements that defied Mendeleev's periodic law were discovered.​ 

Additional Information

Mendeleev left places for undiscovered elements. 

• scandium, gallium and germanium, discovered later, have properties similar to Eka–boron, Eka–aluminium and Eka–silicon, respectively. So undiscovered elements were named also by Mendeleevs. 
• It was not very strictly based on increasing order of atomic mass.  For example, cobalt (atomic mass 58.9) appeared before nickel (atomic mass 58.7) based on periodic properties. 
• Noble gases can easily get adjusted in Mendeleev periodic table even they were discovered after the periodic table. 

Six people: M, N, O, P, Q, and R.

1) Only two people sit between Q and N, who sit extreme left end of the row.

2) Q sits second to the left of R.

3) O is an immediate neighbor of R.

4) P and M are immediate neighbor to each other.

5) N is not immediate neighbor of M.

The answer is Bundi.

Key Points

• Kanak Sagar is a historic lake at the Dugari town of the Bundi district in Rajasthan. 
  • It is famous for migrated birds hanging around the whole year like Pelicans, Black-tailed Godwit.
  • The Dugari fort is another attraction of this Kanak Sagar. 

Important Points

Major lakes of Rajasthan: