Water, air and sunlight are essential for life. Sunlight powers photosynthesis, air provides oxygen and carbon dioxide and water supports growth and transport. Together, they help plants, animals and microbes survive and keep ecosystems balanced. Class 8 Science Curiosity Textbook Chapter ...
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Ecosystems support life by providing food, water, air, shelter and balance. Each organism—plants, animals, microbes—plays a role in recycling nutrients, maintaining climate and sustaining life cycles essential for survival on Earth. Class 8 Science Curiosity Textbook Chapter 1 Exploring the Investigative ...
Living organisms interact constantly with air, water, sunlight, soil and other organisms. These relationships include food chains, shelter, reproduction and competition, forming a balanced system called an ecosystem that supports life on Earth. class 8 science chapter 1 exploring the investigative ...
Celestial bodies like the Sun, Moon and stars have shaped human routines and calendars. Their movements mark days, months and seasons, guiding farming, festivals and daily schedules. Ancient civilizations built systems around these predictable cosmic events. class 8 science chapter 1 ...
Lunar cycles and daily sunrises/sunsets provided early humans with natural patterns to measure time. The Moon’s phases marked months and the Sun’s regular rise and set marked days, forming the basis for ancient timekeeping and calendars. class 8 science chapter 1 ...