rainfall
Water(H2O)
The Sun is the primary source of all energy on Earth.
Plants
Fossils.
Water is the most powerful source on Earth because it is the root of all life. All living things need water, from plants and wildlife to humans. Without water, nothing on Earth could survive.
Water(H2O)
The Sun is the primary source of all energy on Earth.
The primary is the sun
Rainwater is an example of a primary source of water. Water from a pumping station is a secondary source of water.
Sunlight is Earth's primary source of energy.
The Sun
Sun's electromagnetic radiation.The Sun's energy heats up the water on the Earth's surface and evaporates the water into the atmosphere. The water in the atmosphere then condenses into rain and falls back to the Earth.
Oil, for now....
our primary source comes from the sun.
our primary source comes from the sun.
Plants
The Earth's Iron Core