Explanation Mammals are a group of vertebrate animals constituting the class Mammalia, and characterized by the presence of mammary glands which in females produce milk for feeding their Babies, a neocortex, fur or hair, and three middle ear bones.

Explanation The  interest  rate  cycle  is closely related to the economic or trade  cycle

Explanation Motorola was the  first  company to produce a handheld mobile phone. On  April 3, 1973 , Martin Cooper, a Motorola researcher and executive, made the first mobile telephone call from handheld subscriber equipment, placing a call to Dr. Joel S. Engel of Bell Labs, his rival. ****

Explanation Glucose, also called dextrose , one of a group of carbohydrates known as simple sugars

Explanation FIFO (First In, First Out) means that the oldest inventory items are sold or used first . It is commonly used in inventory management to prevent obsolescence and spoilage, especially in perishable goods. Explanation RAM is volatile and primary memory. ROM is non-volatile and permanent storage. Explanation DEO stands for Data Entry Operator , a person responsible for entering and managing data in computer systems. This role is essential in offices, organizations, and administrative work for accurate record-keeping. Explanation An output device is any piece of computer hardware that converts information or data into a human-perceptible form or, historically, It can be text, graphics, tactile, audio, or video. Examples of Input Devices 1.         Keyboard. 2.         Mouse. 3.         Touchpad. 4.         Scanner. 5.         Digital Camera. 6.         Microphone. 7.         Joystick. 8.         Graphic Tablet. &** Output  Device. Printer monitor projector Explanation Minimum zooming is 10% and Maximum zooming is allowed in 400%. So, 500% is invalid zoom percentage in Excel. Explanation Most databases and spreadsheets (like Excel or Google Sheets) allow users to freely add or delete rows and columns . This flexibility helps in updating or organizing data as per requirements. Explanation In Excel, formulas must begin with an e quals sign (=). Options A, B, and C are all valid formulas. Option D (C1+15) is not a valid formula because it lacks the = sign. Explanation Printer is an output device because it produces a hard copy of digital data. Mouse, Scanner, and Keyboard are all input devices used to send data to the computer. Explanation Shortwave radio operates in the high frequency (HF) band, typically between 3 MHz and 30 MHz . The range 5.9 MHz to 26.1 MHz is commonly used for long-distance communication like international broadcasting. Explanation Fiber optics uses light to transmit data at high speeds through thin glass or plastic fibers . It is mainly used in communication networks like internet, telephone, and cable TV.

Explanation FIFO (First In, First Out) means that the oldest inventory items are sold or used first . It is commonly used in inventory management to prevent obsolescence and spoilage, especially in perishable goods. Explanation RAM is volatile and primary memory. ROM is non-volatile and permanent storage. Explanation DEO stands for Data Entry Operator , a person responsible for entering and managing data in computer systems. This role is essential in offices, organizations, and administrative work for accurate record-keeping. Explanation An output device is any piece of computer hardware that converts information or data into a human-perceptible form or, historically, It can be text, graphics, tactile, audio, or video. Examples of Input Devices 1.         Keyboard. 2.         Mouse. 3.         Touchpad. 4.         Scanner. 5.         Digital Camera. 6.         Microphone. 7.         Joystick. 8.         Graphic Tablet. &** Output  Device. Printer monitor projector Explanation Minimum zooming is 10% and Maximum zooming is allowed in 400%. So, 500% is invalid zoom percentage in Excel. Explanation Most databases and spreadsheets (like Excel or Google Sheets) allow users to freely add or delete rows and columns . This flexibility helps in updating or organizing data as per requirements. Explanation In Excel, formulas must begin with an e quals sign (=). Options A, B, and C are all valid formulas. Option D (C1+15) is not a valid formula because it lacks the = sign. Explanation Printer is an output device because it produces a hard copy of digital data. Mouse, Scanner, and Keyboard are all input devices used to send data to the computer. Explanation Shortwave radio operates in the high frequency (HF) band, typically between 3 MHz and 30 MHz . The range 5.9 MHz to 26.1 MHz is commonly used for long-distance communication like international broadcasting. Explanation Fiber optics uses light to transmit data at high speeds through thin glass or plastic fibers . It is mainly used in communication networks like internet, telephone, and cable TV.

Explanation FIFO (First In, First Out) means that the oldest inventory items are sold or used first . It is commonly used in inventory management to prevent obsolescence and spoilage, especially in perishable goods. Explanation RAM is volatile and primary memory. ROM is non-volatile and permanent storage. Explanation DEO stands for Data Entry Operator , a person responsible for entering and managing data in computer systems. This role is essential in offices, organizations, and administrative work for accurate record-keeping. Explanation An output device is any piece of computer hardware that converts information or data into a human-perceptible form or, historically, It can be text, graphics, tactile, audio, or video. Examples of Input Devices 1.         Keyboard. 2.         Mouse. 3.         Touchpad. 4.         Scanner. 5.         Digital Camera. 6.         Microphone. 7.         Joystick. 8.         Graphic Tablet. &** Output  Device. Printer monitor projector Explanation Minimum zooming is 10% and Maximum zooming is allowed in 400%. So, 500% is invalid zoom percentage in Excel. Explanation Most databases and spreadsheets (like Excel or Google Sheets) allow users to freely add or delete rows and columns . This flexibility helps in updating or organizing data as per requirements. Explanation In Excel, formulas must begin with an e quals sign (=). Options A, B, and C are all valid formulas. Option D (C1+15) is not a valid formula because it lacks the = sign. Explanation Printer is an output device because it produces a hard copy of digital data. Mouse, Scanner, and Keyboard are all input devices used to send data to the computer. Explanation Shortwave radio operates in the high frequency (HF) band, typically between 3 MHz and 30 MHz . The range 5.9 MHz to 26.1 MHz is commonly used for long-distance communication like international broadcasting. Explanation Fiber optics uses light to transmit data at high speeds through thin glass or plastic fibers . It is mainly used in communication networks like internet, telephone, and cable TV.

Explanation FIFO (First In, First Out) means that the oldest inventory items are sold or used first . It is commonly used in inventory management to prevent obsolescence and spoilage, especially in perishable goods. Explanation RAM is volatile and primary memory. ROM is non-volatile and permanent storage. Explanation DEO stands for Data Entry Operator , a person responsible for entering and managing data in computer systems. This role is essential in offices, organizations, and administrative work for accurate record-keeping. Explanation An output device is any piece of computer hardware that converts information or data into a human-perceptible form or, historically, It can be text, graphics, tactile, audio, or video. Examples of Input Devices 1.         Keyboard. 2.         Mouse. 3.         Touchpad. 4.         Scanner. 5.         Digital Camera. 6.         Microphone. 7.         Joystick. 8.         Graphic Tablet. &** Output  Device. Printer monitor projector Explanation Minimum zooming is 10% and Maximum zooming is allowed in 400%. So, 500% is invalid zoom percentage in Excel. Explanation Most databases and spreadsheets (like Excel or Google Sheets) allow users to freely add or delete rows and columns . This flexibility helps in updating or organizing data as per requirements. Explanation In Excel, formulas must begin with an e quals sign (=). Options A, B, and C are all valid formulas. Option D (C1+15) is not a valid formula because it lacks the = sign. Explanation Printer is an output device because it produces a hard copy of digital data. Mouse, Scanner, and Keyboard are all input devices used to send data to the computer. Explanation Shortwave radio operates in the high frequency (HF) band, typically between 3 MHz and 30 MHz . The range 5.9 MHz to 26.1 MHz is commonly used for long-distance communication like international broadcasting. Explanation Fiber optics uses light to transmit data at high speeds through thin glass or plastic fibers . It is mainly used in communication networks like internet, telephone, and cable TV.

Explanation FIFO (First In, First Out) means that the oldest inventory items are sold or used first . It is commonly used in inventory management to prevent obsolescence and spoilage, especially in perishable goods.

Explanation RAM is volatile and primary memory. ROM is non-volatile and permanent storage.