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Describe the Earths principal sources of internal and external energy?
the sun- all the plants need it or photosynthesis and animals need it for oxygen.
What does the earths internal thermal energy come from?
From radioactivity in the Earth's interior.
What are the two sources of energy in the earths system?
The sun's rays and wind.
Which of earth's early sources of heat are not major contributors to earth's present-day internal energy?
The sun
What is the source of the energy that powers the earth's system?
The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.
What is the source of the energy that powers the earths system?
The Earth system is powered by energy from two major sources: the Sun and the planet's internal heat.
Describe the Earths principal sources of internal and external energy?
the sun- all the plants need it or photosynthesis and animals need it for oxygen.
What are two sources of the Earths energy?
the sun and the moon
What are the sources of energy that power the earths systems?
The sun and the earth's interior are the two sources of energy that power earth's systems.
What are the two sources of that power earths energy?
The sun and the earth's interior are the two sources of energy that power earth's systems.
What does the earths internal thermal energy come from?
From radioactivity in the Earth's interior.
What are two sources of energy that power earths system?
The sun and the earth's interior are the two sources of energy that power earth's systems.
What are the two sources of energy in the earths system?
The sun's rays and wind.
What are the two sources of energy for the earths systems?
solar system and gas
Energy can enter the earth system from internal sources through convection and from external sources through what?
Energy can enter the earth system from internal sources through convection and from external sources through radiation from the Sun (solar energy).
What sort of energy allows the tectonics plates to move?
The Earths internal heat.
What are the two sources of energy for the processes in earths lithosphere?
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