A primary rainbow is brighter than a secondary rainbow because
A) sunlight reaching it is more intense.
B) there is one less reflection inside the water drops.
C) larger drops produce primary rainbows.
D) the secondary bow is a dim reflection of the primary rainbow.
E) none of the above
Question 2
Rainbows are not usually seen as complete circles because
A) the ground is usually in the way.
B) they are actually elliptical.
C) they have no bottom part.
D) raindrops are not perfectly round.
E) rainbows are arched shaped.
Secondary meristems generate wood and bark.
Rainbow plant (Byblis gigantea)
Primary pulse points of the body.
The a helix, a common secondary structure in proteins
There are many types of adaptive devices: (A) a toothbrush; (B) a reaching stick; (C) a shoe holder; ...
Primary succession