Manatee mortality rates have been studied extensively to determine the greatest threats to their populations and to develop protection plans. the table below shows fractions of mortality due to various causes based on data from salvaging manatee carcasses from 2001 to 2009. based on the table below, what would be the most effective regulations to introduce to protect manatees in this region? manatee mortality rates by cause cause adult mean % of mortality calf mean % of mortality watercraft 0.54 0.36 marine debris 0.03 0.02 regulations to enforce no wake zones for boats regulations to prevent excessive runoff regulations to penalize littering regulations to reduce carbon emi

Looking at the graph and the mortality rates, it's clear that the mean percentage of death in adults in calves are higher when it comes to death by watercraft. Therefore, regulations should be put in place to enforce no wake zones for boats.

A. Regulations to enforce no wake zones for boats

I just finished the test and got it right.

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.