Learn Online How Do Earthquakes Occur? Staff Reporter The upper layer of the Earth is made up of enormous, rocky pieces called tectonic
Learn Online What Is Photosynthesis? Staff Reporter Photosynthesis is the process that green plants use to make food.
Learn Online What Is the Ozone Layer? Staff Reporter The ozone layer is a layer of gas in the Earth’s stratosphere that protects the
Learn Online What Are Coral Reefs? Staff Reporter Corals are marine organisms found in all of the world’s oceans.
Learn Online What Are Fossil Fuels? Staff Reporter Fossil fuels are carbon-rich substances formed due to the decomposition of dead plants and animals
Learn Online How Do Mountains Form? Staff Reporter The naturally occurring physical features on the surface of the Earth are called landforms. Mountains,
Learn Online How Does Digestion Occur in Humans? Staff Reporter The food consumed by humans is broken down into extremely small water-soluble molecules through the
Learn Online How Does Soil Form? Staff Reporter Soil is a mixture of minerals, pieces of rock, organic matter, living creatures, air and
Learn Online How Do Pearls Form? Staff Reporter Pearls are hard, shiny objects that are made by oysters and other molluscs.
Learn Online What Is Global Warming? Staff Reporter Global warming is the gradual warming of the Earth’s surface, atmosphere and oceans caused by