Decades ago, urban development destroyed manatee habitats and caused direct damage to their populations. Such changes caused the number of individuals to
plummet. Today, habitats are protected and manatee food sources are more
abundant. Examine the population data collected to see if the manatee population
in Florida has changed.
Florida Manatee Population
1990-1,100
1995-2,200
2000-3,300
2005-4,500
2010-5,500
2015-6,300

a and c are the answeres

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.