Methane is the primary component of natural gas.
Answer the following statement true (T) or false (F)
True
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Passive solar heating systems involve
A. green roofs. B. pumping a heat-absorbing fluid through collectors on the roof. C. wind turbines with solar panels attached. D. foil sheets under the floor. E. adobe walls and windows that face the sun and store the collected solar energy.
How does the wave model of electrons orbiting the nucleus account for the fact that the electrons can have only discrete energy values?
A) Electrons are only able to vibrate at particular frequencies. B) When an electron wave is confined, it is reinforced only at particular frequencies. C) The energy values of an electron only occur where its wave properties and probability clouds are mutually reinforcing. D) The wave model accounts for the types of orbitals an electron may occupy, not its energy levels.
The theoretical point at which an impact becomes irreversible is known as a(n) _________ __________
Fill in the blank(s) with correct word
Which of the following statements is NOT accurate regarding geothermal power?
A. Geothermal power generators are one of the true fully sustainable energy sources. B. Geothermal power can deplete groundwater sources. C. Geothermal power reduces but does not eliminate emissions. D. Geothermal energy can be used as heat exchangers for heat pumps for homes and businesses.