Although they seem to remain unchanged, many mountains undergo steady growth. If erosion and weathering are ignored, some mountains, like the San Gabriels in southern
California, grow as much as 1.0cm in a year. If a year is considered to be exactly
365 days, what is the speed at which the San Gabriel Mountains grow in cm per hour?

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.