ES101 Lecture Notes - Lecture 17: Wavelength, Photosynthesis, Radiant Energy
19 Feb 2018
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What percentage of solar energy that reaches the earth is reflected back to the upper atmosphere: 34% Consequently, what percentage of this energy reaches the earth: 51% What percentage is released back to the atmosphere as heat: 66% What percentage of solar energy is used in photosynthesis: 1% What is the natural greenhouse effect: solar radiatio(cid:374) hits earth"s surface a(cid:374)d for(cid:373) lo(cid:374)g (cid:449)a(cid:448)e le(cid:374)gth infrared radiation. These wave lengths get trapped in the troposphere causing gas molecules to vibrate thus, increasing ki(cid:374)etic e(cid:374)ergy a(cid:374)d (cid:449)ar(cid:373)i(cid:374)g earth"s surface. Earth making it warm enough to live in otherwise earth would be freezing cold. Energy is produced in biological systems through the process of photosynthesis. basic components of the process: carbohydrates, glucose, oxygen. What are the main components that combine to produce carbohydrates or glucose (energy) and oxygen: carbon dioxide, water, light energy, chlorophyll. Biological systems are structured around the distribution of energy.
