If a material absorbs a certain frequency of visible light, that frequency
A.
will not be reflected, so its color will be perceived by an observer.
B.
will not be reflected, so its color will not be perceived by an observer.
C.
will be reflected, so its color will be perceived by an observer.
D.
will be reflected, so its color will not be perceived by an observer.

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

All of the following are part of the biosphere except