Changing the wavelength of visible light changes its color. if the wavelength is decreased or increased outside of the range of wavelengths our eyes can detect, the light becomes invisible to us, but it is still fundamentally light. examine the figure, which shows the entire electromagnetic spectrum and includes all types of light as a function of wavelength.

answer they showed that organic molecules such as amino acids could be produced from inoragnic molecules;

in plessy v. ferguson in 1896, the u.s. supreme court ruled that racially separate facilities, if equal, did not violate the constitution. segregation, the court said, wasn't discrimination.

in brown v. board of education, the court overturned plessy v. ferguson, and declared that racial segregation in public schools violated the equal protection clause of the 14th amendment.