  Geothermal energy is energy produced using the heat from under the earth.     Hydrothermal is energy produced by using the different temperatures of water. Pl â¦ aces in the Tropics with warm surface water but also deep cold water are most suitable.   Both geothermal and hydrothermal are renewable and clean.xists and is an alternate of. Merge this question into. Split and merge into it. Answer by Santosh Lundani. Confidence votes 23. Hydrothermal means, quite literaly. The process is used to produce 'green' electricity. The heat from the centre of the Earth is used to turn water into steam.
wear your heart on your sleeve. to make your feelings and opinions obvious to other people John's always worn his heart on his sleeve, so there's no doubt who he'll be supporting. See also: heart, on, sleeve, wear. Related vocabulary: wear something on your sleeve.
Sense of band around the sleeve is first attested 1520s; sense of hem of trousers is 1911. Off the cuff extemporaneously is 1938 American English colloquial, suggesting an actor or speaker reading from notes jotted on his shirt sleeves rather than learned lines. Cuff links is from 1897.