Question Discussion & Solution

• Soils are complex mixtures of minerals, water, air, organic matter, and countless organisms that are the decaying remains of once-living things.
• Soils are formed as a result of weathering of rocks.
• Different regions of India have different types of soils.
• Each soil has a unique property and characteristics and suitable for particular crop production.

Key Points

Jute:

• Jute crop requires a hot and humid climate with temperatures between 24 degrees Celsius and 38 degrees Celsius.
• Alluvial sandy loam, clay loamy soils are best suited for jute production.
• Jute is one of the natural fibre crops grown in India.
• The cultivation of jute in India is mainly confined to the eastern region of the country.
• The jute crop in India is grown in nearly 83 districts of seven states –  West Bengal, Assam, Orissa, Bihar, Uttar Pradesh, Tripura, and Meghalaya. 

Thus, Jute grows well on Alluvial soil. 

Important Points

Running, Swimming, Dancing requires some body movement from one place to other.

While, Breathing does not require movable body movement.

Hence, Breathing is the correct answer.

Explanation:

• The purpose of regression testing is to confirm that a recent program or code change has not adversely affected existing features.
• Regression testing is nothing but a full or partial selection of already executed test cases that are re-executed to ensure existing functionalities work fine.
• This testing is done to make sure that new code changes should not have side effects on the existing functionalities. It ensures that the old code still works once the new code changes are done.

The purpose of regression testing is to select test cases partially or fully to ensure existing functionalities work fine. Thus, regression testing is primarily related to functional testing

Need of Regression Testing

• Regression Testing is required when there is a change in requirements and code is modified according to the requirement or when one of the following has been done.
  • New feature is added to the software
  • Defect fixing
  • Performance issue fix

All the given number is square of some number – 1 except ‘257’

120 → (11)² – 1

257 → (16)² + 1

440 → (21)² – 1

323 → (18)² – 1

Inheritance

The capability of a class to derive properties from another class is called Inheritance

• The class that inherits properties from another class is called Subclass or Derived Class.
• The class whose properties are inherited by a subclass is called Base Class or Superclass.

Syntax for Inheritance

class derived_name : access_mode base_class

{

//body of derived class

};

Additional Information 

Polymorphism

Polymorphism is mainly divided into two types:

• Compile-time Polymorphism
• Runtime Polymorphism

Compile-time polymorphism

This is achieved by function overloading or operator overloading.

• Function Overloading - When there are multiple functions with the same name but different parameters then these functions are said to be overloaded
• Operator overloading - When there are multiple operations can be performed by using single operator is called operator overloading for example operator ‘+’ when placed between integer operands, adds them and when placed between string operands, concatenates them

Run Time Polymorphism

It is achieved by Function Overriding.

Conclusion

Feature of Reusability is followed by inheritance so the correct answer is the inheritance.