element symbol girl、Element symbol、hydrogen（H2）teeth、An element with atomic number 1、It is the lightest gas on earth。colorless and odorless、融点teeth-259℃、沸点teeth-253℃です。Although flammable、他の可燃性ガスとteeth異なり、炎teeth無色透明です。 hydrogenteeth、It can be obtained from the electrolysis of water and the decomposition of fossil fuels such as oil and natural gas.。地球上にteeth水や有機物などに化合物の状態でたくさん存在しますが、直接エネルギーとして使用できるhydrogen単体teeth、almost non-existent。 hydrogenteeth、Even when burned, only water is produced、It is said to have a low environmental impact。Also、hydrogenteeth二酸化炭素（CO2）To return to the water without emitting any、It is attracting attention as the ultimate clean energy.

(nsfw:1.5),verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (ugly face:0.8),cross-eyed,sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, bad anatomy, DeepNegative, facing away, tilted head, {Multiple people}, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worstquality, low quality, normal quality, jpegartifacts, signature, watermark, username, blurry, bad feet, cropped, poorly drawn hands, poorly drawn face, mutation, deformed, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, extra fingers, fewer digits, extra limbs, extra arms,extra legs, malformed limbs, fused fingers, too many fingers, long neck, cross-eyed,mutated hands, polar lowres, bad body, bad proportions, gross proportions, text, error, missing fingers, missing arms, missing legs, extra digit, extra arms, extra leg, extra foot, ((repeating hair))