Q No. 3:
Most of the sources of energy we use represent stored
solar energy. Which of the following is not ultimately derived from the Sun’s
energy?
(a)
Geothermal energy
(b)
Wind energy
(c)
Nuclear energy
(d)
Bio-mass
(c) Nuclear energy. The energy required to fuse the
lighter nuclei is provided by fission reactions. In this reaction there is no
need of sunlight. Therefore nuclear energy is not ultimately derived from Sun’s
energy.
Geothermal energy, wind energy, and bio-mass are
all ultimately derived from solar energy.
But geothermal energy is derived from the break down of radioactive material around the core.
ReplyDeletegeo thermal energy is derived from the heat of the core of the planet there is no role of solar energy in there whereas in nuclear energy the uranium or thorium which is used is ultimately derived from the sun when a star explodes in a nebula by nuclear fusion these radioactive material are formed which we then use in nuclear fission.
ReplyDeleteGeothermal or nuclear which is correct
ReplyDeleteGeothermal is produced by heat of underground molten rocks...which isn't obtained from sun from what I can understand.
ReplyDeleteBut in nuclear, their is some energy required to break down atom (fission) or to join different nuclei (fusion), which I believe would be obtained from some source ultimately dependent on sun.
There's not much maintenance that needs to be done on solar energy systems. You just need to ensure they stay clean. You can do this as often as you like or at least two times a year. precio instalacion placas solares
ReplyDeleteUse a voltmeter to test the array in order to make sure it outputs enough electricity.
ReplyDeleteDab heat resistance adhesive using the flux pen to the backs of each cell. Next, set the pegboard directly on top of the solar cells so that it covers them all. paneles fotovoltaicos