What have CFCs done to Earth and its atmosphere? CFCs have created a hole in the ozone layer, caused more UV radiation to reach earth, and caused cancer to rise (#s). CFCs are found in refrigerators, air conditioners, and aerosal cans.

How are CFCs added in the atmosphere ? Answer: CFCs are released from aersol sprays, refrigerators and air conditioners. CFCs destroy the ozone layer which protects us from harmful ultraviolet rays of the sun.

Buy air-conditioning and refrigeration equipment that do not use HCFCs as refrigerant. Buy aerosol products that do not use HCFCs or CFCs as propellants. Conduct regular inspection and maintenance of air-conditioning and refrigeration appliances to prevent and minimize refrigerant leakage.

Chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs) and halons destroy the earth’s protective ozone layer, which shields the earth from harmful ultraviolet (UV-B) rays generated from the sun. CFCs and HCFCs also warm the lower atmosphere of the earth, changing global climate.

about 12 years

What is the strongest evidence that CFCs are in the stratosphere? Measurements of CFCs in air samples from the stratosphere.

114 years

Water vapour will generally stay in the atmosphere for days (before precipitating out) while other greenhouse gases, such as carbon dioxide or methane, will stay in the atmosphere for a much longer period of time (ranging from years to centuries) thus contributing to warming for an extended period of time.

“Water vapor in the stratosphere increases in tandem with increases in the Earth’s surface temperature,” said coauthor Sean Davis, a scientist at the Cooperative Institute for Research in Environmental Sciences working at the NOAA Earth System Research Laboratory in Boulder, Colo.

Here are some ways of reducing water vapor and its harmful effects in the metallizing system:

1. Metallize parts as quickly as possible after basecoating.
2. Keep the chamber clean.
3. Keep chamber closed and under vacuum unless loading or unloading parts.
4. Air-condition or dehumidify metallizing area.

Water vapor is also the most important greenhouse gas in the atmosphere. Heat radiated from Earth’s surface is absorbed by water vapor molecules in the lower atmosphere. The water vapor molecules, in turn, radiate heat in all directions. Some of the heat returns to the Earth’s surface.

Oceans

37.5 million-billion gallons

The amount of water vapor in the air is called absolute humidity. The amount of water vapor in the air as compared with the amount of water that the air could hold is called relative humidity.

Moisture in the atmosphere is continually changing its physical state condensing into liquid, freezing into ice, melting into liquid water, evaporating into gaseous water vapor, and condensing back to liquid. These changes are all related to temperature, the gage of molecular activity in any substance. At about -460°F.

troposphere

Water and the atmosphere Water enters the atmosphere through evaporation, transpiration, excretion and sublimation: Transpiration is the loss of water from plants (via their leaves).

Heat from the Sun causes water to evaporate from the surface of lakes and oceans. This turns the liquid water into water vapor in the atmosphere. After absorbing water from the ground, plants “sweat” water vapor through their leaves to stay cool. Water can also get into the atmosphere from snow and ice.

Water, as a vapor in our atmosphere, could potentially escape into space from Earth. But the water doesn’t escape because certain regions of the atmosphere are extremely cold. Water vapor in the air falls back to the surface as rain or snow.

Moisture moves back and forth from Earth’s surface to the atmosphere and, once in the atmosphere, is transferred vertically and laterally by moving air. Atmospheric moisture is expressed as clouds, precipitation, storms, weather fronts, and other phenomena.

Water in the air in its gaseous state, i.e. humidity, can store very large amounts of energy and can release it again during conversion to the liquid state, rain. Due to its properties, water, as humidity in the air, stabilises our climate and prevents large extremes of temperature.

Atmosphere doesn’t controlled the weather,atmosphere doesn’t control the day and night time and atmosphere doesn’t control the ecosystem. D. Makes the planet’s surface temperature stable and prevents extreme temperatures.

Importance of the Earth’s Atmosphere

• Temperature. One of the most important benefits the atmosphere provides is maintaining the Earth’s temperature.
• Radiation. The atmosphere serves as a protective shield against radiation and cosmic rays.
• Physical Protection.
• Weather and Water.

The atmosphere of Earth protects life on Earth by creating pressure allowing for liquid water to exist on the Earth’s surface, absorbing ultraviolet solar radiation, warming the surface through heat retention (greenhouse effect), and reducing temperature extremes between day and night (the diurnal temperature variation …

Atmosphere is essential for life on Earth as it supplies oxygen, water, CO2 and some nutrients (N) to living organisms, and protects living organisms from temperature extremes and excessive UV radiation.