01What problem is commonly caused by single-use plastic?एकल-उपयोग प्लास्टिक से सामान्यतः कौन-सी समस्या उत्पन्न होती है?
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Science
Human impact on Earth systems
In this Class 9 Science topic, students explore how human activities influence Earth’s interconnected systems—atmosphere, hydrosphere, geosphere, and biosphere. Building on the chapter Earth as a System: Energy, Matter, and Life, they examine how energy and matter move through natural cycles and how pollution, deforestation, urbanisation, intensive resource use, and greenhouse-gas emissions can disrupt them. The topic also develops understanding of evidence-based environmental change, its effects on living systems, and practical approaches to conservation and sustainable living.
Easy · Level 1 · 1 questions