Petrol, diesel, and kerosene are obtained from petroleum. NCERT Book Curiosity Science Class 6 Class 6 Science NCERT Chapter 11 Chapter 11 Nature’s Treasures
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The most common fuels used in vehicles are petrol and diesel. Class 6 Science NCERT Chapter 11 Chapter 11 Nature’s Treasures
The handspan is not a standard unit of measuring length. Unlike millimeters, centimeters, and kilometers, which are part of the metric system and universally accepted, the handspan varies between individuals and lacks consistent measurement criteria.
Leaves of the same tree vary in length and breadth due to factors like genetics, environmental conditions, light exposure, and water availability. These variations help optimize photosynthesis and adapt to differing microenvironments within the tree’s habitat.
At home and school, I found various measuring scales: a ruler (1 mm), a measuring tape (1 cm), a caliper (0.01 mm), and a yardstick (1 cm). Each tool offers different precision for measuring lengths and dimensions.