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Which is the chemical break-up of H2O?
particles of salt, dust or smoke
convection
mechanical to thermal energy
The amount of wind can vary.
wind
solar energy
H+ H+ O-
kinetic energy
Besides water vapor, what must be present for clouds to form?
particles of salt, dust or smoke
convection
mechanical to thermal energy
The amount of wind can vary.
wind
solar energy
H+ H+ O-
kinetic energy
Because burning fossil fuels creates much pollution, alternatives are being investigated. What might limit the use of wind as a major resource?
particles of salt, dust or smoke
convection
mechanical to thermal energy
The amount of wind can vary.
wind
solar energy
H+ H+ O-
kinetic energy
Heated air moves from hot-air vents to the rest of a room in a process called
particles of salt, dust or smoke
convection
mechanical to thermal energy
The amount of wind can vary.
wind
solar energy
H+ H+ O-
kinetic energy
When a person rubs his hands together on a cold day, friction is being used to convert
particles of salt, dust or smoke
convection
mechanical to thermal energy
The amount of wind can vary.
wind
solar energy
H+ H+ O-
kinetic energy
Uneven heating of the air near Earth's surface causes
particles of salt, dust or smoke
convection
mechanical to thermal energy
The amount of wind can vary.
wind
solar energy
H+ H+ O-
kinetic energy
What is the direct and indirect source of most energy resources?
particles of salt, dust or smoke
convection
mechanical to thermal energy
The amount of wind can vary.
wind
solar energy
H+ H+ O-
kinetic energy
What is the energy of motion called?
particles of salt, dust or smoke
convection
mechanical to thermal energy
The amount of wind can vary.
wind
solar energy
H+ H+ O-
kinetic energy
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