# Earth as a System: Energy, Matter, and Life Important Questions and Practice Set with Answers | NCERT Class 9 Science | SwaVid

This page provides a comprehensive review of Chapter 13, "Earth as a System: Energy, Matter, and Life," from the NEW NCERT Class 9 Science textbook, "Ex...

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# Earth as a System: Energy, Matter, and Life

## Which of the following is the primary source of energy for all life on Earth?

## Find the gaps before this chapter finds them for you.

## Related chapters

Chapter 13 · Class 9 Science

This page provides a comprehensive review of Chapter 13, "Earth as a System: Energy, Matter, and Life," from the NEW NCERT Class 9 Science textbook, "Exploration." This chapter delves into the intricate interconnections between Earth's various spheres (the atmosphere, hydrosphere, lithosphere, and biosphere) and how energy flows and matter cycles through them. It explores fundamental concepts such as the role of solar energy, biogeochemical cycles (water, carbon, nitrogen, oxygen), the greenhouse effect, ozone layer, and the impact of human activities on these vital systems. The questions are designed to test understanding of these core principles and their real-world implications.

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Multiple Choice Questions · 1 / 15

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- NCERT Class 9 Science textbook: Exploration : Chapter 13: Earth as a System: Energy, Matter, and Life

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