Answer: It should be Geothermal.
The avantages of geothermal energy are;
1. It is a Renewable and reliable source of energy.
2. It is a clean source of energy and it is sustainable.
3. It has little or no cost of maintenance and operations.
Disadvantages are;
1. It can cause environmental pollution. High concentration of of geothermal can lead green houses gases affecting the atmosphere.
2. It can lead to earthquakes.
3. The geothermal powerplants or cooling system are expensive to maintain and purchase.
Explanation:
Geothermal energy is the heat energy that is gotten from the sun surface of the Earth. It is found in the rock and fluid in the Earth crust.
Ozone is present in the stratosphere layer of earth's atmosphere, which is about 6 to 30 miles from the earth's surface.
It is very helpful as it protects the life on earth from the harmful ultraviolet rays that come from the sun.
It is harmful as well because when it is inhaled by humans it can damage the lungs and can cause various problems such as chest pain and respiratory diseases.
The ozone layer is depleted by the CFCs, as the UV rays of the sun breaks down the CFCs into chlorine atoms. These chlorine atoms react with ozone and deplete the ozone layer.
The primary function of major organs shown in the figure include;
1. Sporangia; its functions is to produce spore structures which are aggregated to bigger structures.
2. Rhizoids; are structures which are being projected from prothallium and its function is anchoring structures.
3. Prothallus; is the gametophyte and its functions are the carrier of both female and male sex organs.
4. Antheridium; it is the female sex organ and its functions are to produce eggs.
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