Fill in the following blanks with suitable words:
(a) Biomass is another form in which _________ energy manifests itself.
(b) Tidal waves build up and recede _________ a day.
(a) Biomass is another form in which solar energy manifests itself.
Explanation
Biomass gets its energy from the sun which gets stored in the chemical form. Plants produce biomass, during a process called photosynthesis.
(b) Tidal waves build up and recede twice a day.
ExplanationTidal energy: Tides occurs due to the rise and fall of sea level which is caused by the gravitational pull of the moon and the sun on the Earth. Coastlines experience either a daily diurnal or semi-diurnal tide consisting of one or two high and low tides respectively. If the difference between the high and low tides is large enough, then energy can be harnessed and used for electricity production
There are two main types of tidal energy:
1. Kinetic energy obtained from the currents of changing tides.
2. Potential energy obtained from changing heights between the high and low tide.
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