Design an experiment using a seedling and a block of agar soaked with auxins that might con- firm the effect of this hormone on the elongation of the coleoptile. (Hint: Remember that the auxins are permeable to the agar material.)

rising temperatures because when water vapor in the air is cooled, it condenses. it turns back into a liquid and attaches to dust particles in the air. these very small water droplets group together to form clouds

wegner's theory did not explain how the continents could move

explanation:

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.