We're Dripping!
The moisture content of the air.
What is humidity?
The process by which certain gases trap heat that radiates from earth.
What is the Greenhouse effect?
The number of molecules or atoms of a substance in a mixture for every 1 million molecules or atoms in that mixture.
What is parts per million?
This device converts the deadly pollutant carbon monoxide to carbon dioxide.
What is a catalytic converter?
The process by which sweat cools the human body.
What is evaporation?
The mass of water vapor contained in a certain volume of air.
What is absolute humidity?
The heat index is made up of these two measurements.
What are temperature and humidity?
If the concentration of a pollutant in a sample of air is about 0.03%. In ppm this is ________.
300 ppm.
This gas _______ is harmful in this area of the atmosphere __________ and beneficial in another_________.
What is ozone?
What is lower layer of atmosphere?
What is the upper layer of atmosphere?
The more humidity in the air the __________ you will feel.
What is warmer?
The ratio of the mass of of water vapor in the air at a given temperature to the maximum mass of water vapor the air could hold at that temperature, expressed as a percentage.
What is relative humidity?
The phenomenon of the earth getting too warm due to increased levels of carbon dioxide and other greenhouse gases.
What is global warming?
A concentration of 151 ppm is equal to ______ %.
what is 0.0151%.
What natural activity contributes to the sulfur oxides in our air?
What is Volcanic Activity?
The effect of a higher concentration of oxygen on a flame.
What is it increases the speed at which the fire burns?
(It burns brighter).
Which gas makes up the largest percentage of dry air?
What is Nitrogen.
This poisonous gas protects us from the harmful energy from ultraviolet light.
What is ozone?
What is hundred?
The concentration of pollutants in the air we breathe has been ________________ over the last 30 years?
(increasing or decreasing)
What is decreasing?
The effect on temperature of an increased concentration of carbon dioxide in the air.
What is the air gets warmer?
The necessary chemical reactions that supply energy for our bodies are called _____________ reactions and are dependent on the ____________ in the air we breathe.
What are combustion and oxygen?
Risks of lung damage, blindness, and fires may occur if this gas was found in greater percentages in our air.
What is oxygen?
An analysis comparing the positive results of a policy to its negative results.
What is a cost/benefit analysis?
This change in 1976 resulted in the dramatic reduction of airborne lead concentration in our air.
What is automobiles using unleaded gasoline?
Carbon dioxide gas performs these two major functions for the maintenance of life on earth.
What is photosynthesis, and temperature regulation?