Control structures and control statements are important concepts in programming languages, and they are used to control the flow of execution of a program or a block of code. While control structures and control statements are related and often used together, they are distinct and separate concepts that have different characteristics and functions.

Control structures: Control structures are the basic building blocks of a program, and they are used to specify the order in which a program or a block of code is executed. Control structures are used to control the flow of execution of a program, and they are classified into three main types: sequence, selection, and iteration.

• Sequence control structure: Sequence control structure is a type of control structure that specifies the order in which a program or a block of code is executed sequentially, from top to bottom. Sequence control structure is the most basic and fundamental control structure, and it is used to execute a series of statements or instructions one after the other.
• Selection control structure: Selection control structure is a type of control structure that allows a program or a block of code to make decisions and choose different paths of execution based on certain conditions or criteria. Selection control structure is used to execute different statements or instructions based on the value of a condition or an expression.
• Iteration control structure: Iteration control structure is a type of control structure that allows a program or a block of code to execute a set of statements or instructions repeatedly until a certain condition or criteria is met. Iteration control structure is used to execute a block of code multiple times, based on the value of a condition or an expression.

Control statements: Control statements are special statements that are used to implement control structures in a program or a block of code. Control statements are used to specify the conditions and criteria that determine the flow of execution of a program or a block of code, and they are classified into two main types: conditional statements and looping statements.

• Conditional statements: Conditional statements are control statements that are used to implement selection control structures in a program or a block of code. Conditional statements are used to specify the conditions and criteria that determine the flow of execution of a program or a block of code, based on the value of a condition or an expression.
• Looping statements: Looping statements are control statements that are used to implement iteration control structures in a program or a block of code. Looping statements are used to specify the conditions and criteria that determine the flow of execution of a program or a block of code, based on the value of a condition or an expression.

In summary, control structures are the basic building blocks of a program that are used to specify the order in which a program or a block of code is executed, while control statements are special statements that are used to implement control structures in a program or a block of code. Control structures are classified into three main types: sequence, selection, and iteration, while control statements are classified into two main types: conditional statements and looping statements.