What is shown in photo 2?
solar eclipse
full moon
lunar eclipse
new moon

The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). light from a hydrogen lamp illuminates a diffraction grating with 520lines/mm , and the light is observed on a screen 1.5m behind the grating. part a what is the distance between the first-order red and blue fringes? express your answer to two significant figures and include the appropriate units.

What are segments of dna that code for a particular trait. a combination of dna and proteins make up what

Write the correct abbreviation for each metric unit