Category: Class 5

The content discusses the skeletal and muscular system, covering topics such as cartilage, ligaments, tendons, bone marrow, voluntary and involuntary muscles, ribcage structure, backbone structure, and joints differentiation. It also explores the role of muscles and bones in body movement and whether we can control our heartbeat. A bone and muscle structure labeling is also requested.

Pollution encompasses various types, including acid rain, greenhouse gases, and noise pollution. Air and water pollution result from sources like industrial emissions and chemical runoff, affecting ecosystems and human health. The greenhouse effect drives global warming, caused by human activities. Differentiation between biodegradable and non-biodegradable waste is crucial for waste management.