Earth, the third planet from the Sun in our solar system, is a unique and vibrant celestial body that sustains all life as we know it. With a diverse and interconnected ecosystem, it harbours an incredible array …
Earth
Knowledge
Hydrosphere
The hydrosphere includes all water on Earth in all its forms: liquid, frozen or vapour, meaning all water found in oceans, lakes, rivers, groundwater, ice, snow and glaciers. The biosphere also includes water bound up in life, such as the …
Photosynthesis
Photosynthesis happens when plants, algae and some bacteria use light energy from the sun to convert carbon dioxide and water into glucose and oxygen. For plants, the light energy is captured by chlorophyll, which gives them their green colour. …
Ecosystem Services
Ecosystem services are the various benefits that humans receive from natural ecosystems. These are provided by the multiple functions and processes performed by ecosystems that directly or indirectly benefit human well-being and the functioning of society. We can divide ecosystem …
Ecosystem
An ecosystem is a complex collection of living organisms and their surrounding physical environment, where these organisms interact with each other and the environment in different ways. It includes a specific area’s biotic (living) and abiotic (non-living) components. Ecosystems can …
Cellular Respiration
Humans and other animals need oxygen to burn food in their bodies. When we eat, carbohydrates and oxygen are converted into carbon dioxide, water and energy that cells can use as fuel. This process is called cellular respiration, like reverse …
