The psychrometer is a device used to measure the
Relative Humidity (RH) of the air.
Relative humidity is the ratio of
(the amount of moisture in the air, here and now)
to
(the amount of moisture the air could hold at this temperature) .
Being a ratio, it has no units. It's just a naked number, always
less than ' 1 ', and usually expressed as a percent.
Tropical rain-forests is a <span>biome in north America having the highest biodiversity.
Biodiversity means that there is a variation in the species of animals and plants that exist in a certain biome. A bio-diverse biome or ecosystem is one that supports or has a variety in these species.</span>
B.) a population density map and c.) a political boundary map
