Search results for “natural ecosystem”

The Decline of Ecosystems

The Decline of Ecosystems inevitably wears down economies, livelihoods, food security, and quality of life globally! Healthy ecosystems are necessary for the survival of humans, animals and other organisms. This video suggests ways in which we can halt the decline of ecosystems. Transcript: alugha

The natural water cycle

The natural water cycle is powered from solar energy. Its thermal radiation evaporates water from oceans, lakes and rivers into water vapour. As precipitation, the water enters lakes, rivers and groundwater and eventually flows into the sea. Author: 3sat/nano, mirror TV, Christine Voges, R. Engelk

Energy Flow in the Coral Reef Ecosystem

Learn how energy from sunlight is transferred through the inhabitants of the coral reef ecosystem. Photosynthesizing plants and algae convert light energy into chemical energy, which then gets passed through the food web to plant eaters, flesh eaters, and ultimately to scavengers and decomposers. Vi