Match each time interval with its description. 1. period longest interval of geologic time 2. era major divisions of geologic time within each eon 3. eon major divisions of geologic time within each era dont guess i really need this time but otherwise free points

A: 1. period - major divisions of geologic time within each eon 2. eon - major divisions of geologic time within each era 3. era - longest interval of geologic time. :)

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.

the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.