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Ch 4   Program 1: For Loop for Multiplication table  #include <stdio.h> int main() {     int num, i;  // Ask user to enter a number     printf("Enter a number: ");     scanf("%d", &num);  // Print multiplication table     printf("Multiplication table of %d:\n", num);     for(i = 1; i <= 10; i++) {         printf("%d x %d = %d\n", num, i, num * i);     }     return 0; } Program 2: Even Numbers  #include <stdio.h> int main() {     int range, i = 2; // Ask user for range     printf("Enter the range of even numbers you want: ");     scanf("%d", &range);     printf("Even numbers from 1 to %d are:\n", range);     // While loop to display even numbers     while (i <= range) {         printf("%d\n", i);         i = i + 2; // Move to next even number   ...

🧮 Program 1: Check Positive or Negative Number #include <stdio.h> int main() { int number; printf("Enter a number: "); scanf("%d", &number); if (number > 0) { printf("The number is positive.\n"); printf("Thank you!\n"); } else if (number < 0) { printf("The number is negative.\n"); printf("Program terminated.\n"); } else { printf("The number is zero.\n"); } return 0; } 👶👨‍🦳 Program 2: Age Category #include <stdio.h> int main() { int age; printf("Enter your age: "); scanf("%d", &age); if (age >= 79) { printf("You are very old.\n"); } else if (age >= 68) { printf("You are old.\n"); } else if (age >= 45) { printf("You are middle-aged.\n"); } else if (age >= 18) { printf(...

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Section A: Multiple Choice Questions (1 Mark each) Choose the most appropriate option for each question. Which trophic level always has the maximum energy in a food chain? (a) Producers (b) Primary Consumers (c) Secondary Consumers (d) Tertiary Consumers The accumulation of non-biodegradable chemicals in the tissues of organisms at successive trophic levels is called: (a) Eutrophication (b) Food Web (c) Biological Magnification (d) 10% Law The main compound responsible for the depletion of the ozone layer is: (a) Carbon Dioxide (CO₂) (b) Sulphur Dioxide (SO₂) (c) Methane (CH₄) (d) Chlorofluorocarbons (CFCs) Which of the following is an example of an artificial ecosystem? (a) Forest (b) Lake (c) Aquarium (d) Grassland If the energy available at the producer level is 10000 J, according to the 10% law, how much energy will be available to the secondary consumer? (a) 100 J (b) 1000 J (c) 10 J (d) 1 J Section B: Short Answer Questions (2 Marks each) De...

Introduction to LibreOffice Writer LibreOffice Writer is a word processing software used for creating, editing, and formatting documents. It allows both manual and style-based formatting for a professional appearance. Unit 1: Digital Documents(Advanced) Chapter 1: Introduction to Styles What Are Styles? Styles are pre-defined formatting rules that can be applied to a document to ensure uniformity and save time. Instead of formatting each element manually, styles apply consistent formatting to paragraphs, pages, tables, and other elements. Benefits of Using Styles : ·       Time saving ·       Consistency across the document ·       Easy to modify all affected sections at once Types of Styles in Writer ·       Page Style : Defines page layout, margins, headers, and footers ·       Paragraph Style : Controls text alignment, spacing, and inde...