I think the answer is, Echocardiograph :)
<span>The most basic universal indicators of human development are life expectancy, literacy, and standard of living. Only health would not be considered as part of these indicators, because it doesn't say anything about human development. Life expectancy refers to the length of someone's life. Literacy is the state of being literate, meaning knowing how to read and write. Standard of living is self-explanatory - whether you live good and have money or the opposite.</span>
Let us consider a drop of water in a river. The droplet flows to a larger body of water such as a lake. From here, or even from the river, the droplet changes from the liquid to the vapor phase via the process of evaporation and goes into the atmosphere. In the atmosphere, the droplet is condensed back into the liquid phase in the form of cloud. When a sufficient amount of water has been created in the clouds, it precipitates back on to the ground and flows into rivers and streams again.<span />
Removing the oxygen in water
Temperature, because the farther away from the sun a planet is, the colder it's atmosphere is.
