Photosynthesis is the process that green plants use to make food.

The ozone layer is a layer of gas in the Earth’s stratosphere that protects the

Corals are marine organisms found in all of the world’s oceans.

Fossil fuels are carbon-rich substances formed due to the decomposition of dead plants and animals

The naturally occurring physical features on the surface of the Earth are called landforms. Mountains,

The food consumed by humans is broken down into extremely small water-soluble molecules through the

Soil is a mixture of minerals, pieces of rock, organic matter, living creatures, air and

Pearls are hard, shiny objects that are made by oysters and other molluscs.

Global warming is the gradual warming of the Earth’s surface, atmosphere and oceans caused by

Ganesh Chaturthi is celebrated by bringing home a Ganesh idol.