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1.tropical(a.):from hot and humid zones
ex : An author given to high-flown tropical phrasings and convoluted symbology.
2.reluctant(a):unwilling,afraid pr hesitant to do something
ex : We were reluctant to get involved.
3.reliance(n.): the act of relying : the state of being reliant
ex :He's been the family's foremost reliance in times of trouble many times.
3.alternate(a.): occurring or succeeding by turns <a day of alternatesunshine and rain
ex :Alternate shades of wood formed a pattern around the window.
4.photovoltaic(a.):of, relating to, or utilizing the generation of a voltage when radiant energy falls on the boundary between
dissimilar substances
ex :The photovoltaic cell offers a solution to the problem of a future energy shortage.
5.geothermal(a.)of, relating to, or utilizing the heat of the earth's interior;also : produced or permeated by such heat
ex :Geothermal power is often used in earthquake zones.











