Humans cause climate problems through pollution, deforestation and overuse of resources. But they’re also the solution—by saving energy, planting trees, reducing waste and using science to create cleaner technologies that protect Earth’s climate. Class 8 Science Curiosity Grade 8 Chapter 1 ...
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UV rays can damage skin, cause sunburn and lead to skin cancer or eye problems. Earth’s ozone layer blocks most harmful UV radiation, acting like a protective shield around the planet’s atmosphere. Class 8 Science Curiosity Chapter 1 Exploring the Investigative ...
Nature’s diversity ensures that living beings adapt to different environments. Each shape, size or feature helps a plant or animal survive, reproduce and perform specific roles, maintaining balance in ecosystems across Earth. Class 8 Science Curiosity Chapter 1 Exploring the Investigative ...
A phulka swells because direct flame heats the dough, turning moisture into steam. The steam expands inside, inflating the roti like a balloon while the outer layers cook and trap the steam inside. Class 8 Science Curiosity Textbook Chapter 1 Exploring ...
Pricking lets steam escape, preventing pressure buildup inside. As a result, the puri won’t puff and stays flat. This experiment shows how holes affect pressure and structure in cooking. Class 8 Science Curiosity Grade 8 Chapter 1 Exploring the Investigative World ...