The sun's rays and wind.
Matter and energy
solar energy and energy from fossil fuels
The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.
1) It is a renewable energy that receives heat from the earths core so you know you will never run out of it. 2) Has no use of fossil fuels like other energy sources so their are no carbon emissions polluting our air.
· To protect against harmful by-products of major sources of energy · To preserve many of the natural resources that we currently use as sources of energy
solar system and gas
The sun and the earth's interior are the two sources of energy that power earth's systems.
The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.
The sun and the earth's interior are the two sources of energy that power earth's systems.
the sun and the moon
The sun and the earth's interior are the two sources of energy that power earth's systems.
The sun and the earth's interior are the two sources of energy that power earth's systems.
The two sources of energy are the sun and energy from the Earth's Interior.
your mom goes to college
Two sources are sun and Earth's interior
Matter and energy
Matter and energy