Can you tell from these absorption spectra whether red light is effective in driving photosynthesis?

Plants assimilate blue/green light and reflect yellow and red wavelengths of light. These assimilation spectra tells us that green and yellow wavelengths of light are much more effective than red light.

Explanation:

To provide plants the best possibility to perform photosynthesis, a blue light within the range of 425–450 nanometers  is much better than red which is absorbed by chlorophylls, used effectively and it is generally less energetic than blue.

Some part of absorbed blue light is not going to photosynthesis as carotenoids do not conduct assimilated energy efficiently to chlorophyll. Plants embodying mostly cartenoids show red, orange or yellow. Red light matches with the absorption peak of chlorophylls, which do photosynthesis to produce sugars and carbons the plant cells´ structure blocks.

not  

cuba  

russia  

iraq  

el salvador  

explanation:

known as the land of volcanoes, el salvador has visit seismic tremors and volcanic movement. it is the main nation in central america that does not have a coastline on the caribbean sea. about portion of all salvadorans live in the wide open. they are poor and don't have power or running water in their homes. in 1525, pedro de alvarado, a lieutenant of cortés's, vanquished el salvador. el salvador, with alternate nations of central america, pronounced its freedom from spain on sept. 15, 1821, and was a piece of a league of central american states until the point when that association broke up in 1838.