Hooke observed a thin slice of cork under his microscope. He discovered tiny compartments resembling honeycombs and called them “cells,” initiating the field of cell biology. Class 8 NCERT Science Curiosity Chapter 2 The Invisible Living World: Beyond Our Naked Eye ...
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Robert Hooke pioneered microscopy by making detailed drawings of tiny structures and publishing them in Micrographia. He coined the term “cell”, beginning the scientific study of cellular biology. Class 8 NCERT Science Curiosity Chapter 2 The Invisible Living World: Beyond Our ...
Robert Hooke published Micrographia, the first detailed book of microscopic observations. It revealed the structure of materials like cork and introduced the word “cell,” marking a milestone in biological discovery. Class 8 Science Grade 8 Chapter 2 The Invisible Living World: ...
Overuse of coal can be reduced by switching to renewable sources like solar and wind, improving energy efficiency, promoting public transport and adopting energy-saving appliances and building designs. Class 8 Social Science Exploring Society: India and Beyond Class 8 Social Science Chapter ...
Coal takes millions of years to form from buried organic matter. Once extracted and burned, it cannot be replaced quickly. Its slow formation and rapid use make it a non-renewable energy source. Class 8 Social Science Textbook Chapter 1 Natural Resources ...