How does interferon protect us from H1N1?
Interferon is a protein released by the immune system in response to viral infections like H1N1. It helps to inhibit viral replication, boost immune response, and activate other immune cells to help clear the virus from the body, thus protecting us from the H1N1 virus.
What does the germinal layer do?
The germinal layer is the innermost layer of the skin where new skin cells are formed. This layer contains stem cells that divide and differentiate to regenerate the outer layers of the skin, providing a constant supply of new skin cells for growth and repair.
What do CFC's use to extinguish fires?
CFCs, also known as chlorofluorocarbons, are typically not used anymore for extinguishing fires due to their harmful impact on the ozone layer. Instead, other fire suppression agents like halon, CO2, or clean agents such as FM200 are commonly used. These alternatives are effective in suppressing fires without the ozone-depleting effects of CFCs.
Why is ozone layer is important for us to live on earth?
The ozone layer is important to living things on earth because , without it earth's atmosphere would be unprotected from the Sun's harmful UV rays. Damage from the Sun's UV rays could cause serious health issues such as skin cancer.
What are the most prominent features of airflow above the friction layer?
The most prominent features of airflow above the friction layer include increased turbulence, higher wind speeds, and potential for mixing of air masses at different altitudes. These can result in changes in temperature, moisture levels, and pressure gradients, affecting weather patterns and cloud formation in the atmosphere.
Can the hole in the ozone layer be closed?
Yes, it closes up naturally after the sun returns to the area each spring. Without the sun, it is impossible to maintain the levels of ozone at the poles, thus the thinning occurs each winter until the "hole" occurs late winter or early spring. As long as we have sunlight and oxygen, the hole will close each year naturally.
Why were cfcs used in aerosol sprays?
CFCs break down in the upper atmosphere due to UV light from the sun, forming chlorine radicals (chlorine paricles that will react with just about anything). These will collide with ozone, which is a chemical found in the stratosphere that absorbs harmful solar rays, breaking it down into oxygen.
This process destroys the naural defenses the earth has against damaging levels of solar radiation. Without ozone, cancers and blindness would affect almost every living creature on earth.
Which type of chemicals destroy the ozone that protects people from harmful ultraviolet light?
Chlorofluorocarbons (CFCs) and halons are types of chemicals known to destroy the ozone layer, which protects us from harmful ultraviolet light. These chemicals break down ozone molecules in the stratosphere, reducing the ozone layer's ability to shield us from UV radiation.
Where are the ozone holes located at?
Ozone layer has many holes in it. However it has a considerable major hole in it above Antartica continent. It is formed due to CFC gas. Beacuse of the hole there is an increase in the temperature of earth.
What gases in the atmosphere absorb infrared radiation and Which gases absorb ultraviolet?
Some of the gases found in our atmosphere which absorb infrared light are: carbon dioxide, methane, and water vapor. Gases found in our atmosphere which absorb ultraviolet light are ozone (O3) and oxygen gas (O2).
What protects earth from ultraviolet rays?
The short answer is: Earth molten iron core!
This on its own is a wrong answer, but looking at the "big picture" you will see why:
The Earth is in actually protected by the magnetosphere, which is a magnetic field radiating out from the north- and south-pole of the globe.
This magnetic field deflects the deadly ray from the sun, also called Solar Wind.
Without it Earth would be as deserted and seemingly lifeless as Mars.
The magnetosphere, is more teardrop shaped, rather than round as the name suggest, with the flat side toward our Sun.
This magnetosphere is actually made in the Earth molten iron core, with the interaction between the layers the friction actually produces a magnetic field, this field stretches 70,000 km out in space toward the sun, and roughly double as long away from the sun.
Do chlorofluorocarbons have a negative effect on the ozone layer?
Yes, chlorofluorocarbons (CFCs) have a negative effect on the ozone layer. When CFCs are released into the atmosphere, they break down and release chlorine, which can destroy ozone molecules. This depletion of the ozone layer can result in increased levels of ultraviolet (UV) radiation reaching the Earth's surface, leading to harmful effects on human health and the environment.
What is the name of the layer in the sun that produces blast of gas called?
The layer in the sun that produces blasts of gas is called the chromosphere. This region is located above the sun's photosphere and is responsible for emitting the solar flares and prominences that we observe.
What measures have been put in place to reduce the release CFC?
Measures to reduce the release of CFCs include the 1987 Montreal Protocol that phased out their production, increased use of substitutes like HCFCs and HFCs, and regulations that restrict their use in various industries. Additionally, awareness campaigns and education programs have contributed to reducing emissions.
UV rays can cause mutations in genes by directly damaging the DNA molecules. This can lead to alterations in the genetic code, potentially causing errors in cell replication and increasing the risk of mutations that could contribute to skin cancer or other health problems. UV radiation can also impact gene expression by influencing the activation or silencing of specific genes in cells.
What is the layer of the atmosphere were jets fly through and contains ozone layer?
Jets fly through the stratosphere, which is the second layer of the Earth's atmosphere. The stratosphere contains the ozone layer, which helps to absorb and block harmful ultraviolet radiation from the sun.
Why is the ozone in the stratosphere a desirable gas?
Ozone in the stratosphere is desirable because it forms a protective layer that shields Earth from harmful ultraviolet (UV) radiation from the sun. This helps prevent skin cancer, cataracts, and other harmful effects on humans, animals, and plants.
What contains the ozone layer in eath's atmosphere?
The ozone layer in Earth's atmosphere is mainly composed of ozone molecules (O3). It is located in the stratosphere, a layer of the atmosphere between about 10 and 50 kilometers above Earth's surface. The ozone layer plays a crucial role in absorbing and filtering out the majority of the Sun's harmful ultraviolet (UV) radiation.
What protects us from x rays and how?
Lead and concrete are commonly used to shield against x-rays because they are dense materials that can absorb and block the radiation. Lead is particularly effective due to its high atomic number and density, which make it an ideal barrier for preventing x-rays from penetrating through.
What type of land use can result in nutrient depletion?
Intensive agriculture, such as monoculture farming and livestock grazing, can lead to nutrient depletion in the soil. These practices often involve the heavy use of chemical fertilizers and pesticides, which can disrupt the natural nutrient cycle and cause imbalances in the soil. Over time, this can deplete essential nutrients like nitrogen, phosphorus, and potassium, leading to decreased soil fertility.
Which pigment of plant protects form UV damage?
The pigment that protects plants from UV damage is called flavonoids. Flavonoids act as sunscreen for plants by absorbing and dissipating UV light, reducing the potential for DNA damage and oxidative stress.
What does ethanol do to the ozone layer?
Burning ethanol releases Carbon Dioxide (CO2), a greenhouse gas which is causing global warming. It has very little to do with the ozone layer, which was damaged last century by chlorine and bromine from CFCs (chlorofluorocarbons), released from aerosols and refrigeration.
The ozone layer is located in the stratosphere of the Earth's atmosphere. It is a region where high concentrations of ozone molecules are present, serving as a shield against harmful ultraviolet radiation from the Sun.
Why is earth confined to such a narrow layer near the earth's surface?
Earth's habitable zone is limited to a narrow layer near the surface because this is where conditions are optimal for life to exist. Factors such as temperature, pressure, and the presence of water are crucial for supporting life as we know it. Beyond this narrow layer, conditions become extreme and inhospitable for most forms of life.
How can the ozone gas be reduced?
Ozone depletion describes two distinct but related phenomena observed since the late 1970s: a steady decline of about 4% per decade in the total volume of ozone in Earth's stratosphere (the ozone layer), and a much larger springtime decrease in stratospheric ozone over Earth's polar regions. The latter phenomenon is referred to as the ozone hole. In addition to these well-known stratospheric phenomena, there are also springtime polar tropospheric ozone depletion events.
The details of polar ozone hole formation differ from that of mid-latitude thinning, but the most important process in both is catalytic destruction of ozone by atomic halogens.[1] The main source of these halogen atoms in the stratosphere is photodissociation of man-made halocarbonrefrigerants (CFCs, freons, halons). These compounds are transported into the stratosphere after being emitted at the surface. [2] Both types of ozone depletion were observed to increase as emissions of halo-carbons increased.
CFCs and other contributory substances are referred to as ozone-depleting substances (ODS). Since the ozone layer prevents most harmful UVB wavelengths (280-315 nm) of ultraviolet light (UV light) from passing through the Earth's atmosphere, observed and projected decreases in ozone have generated worldwide concern leading to adoption of the Montreal Protocol that bans the production of CFCs, halons, and other ozone-depleting chemicals such as carbon tetrachloride and trichloroethane. It is suspected that a variety of biological consequences such as increases in skin cancer, cataracts,[3] damage to plants, and reduction of plankton populations in the ocean's photic zone may result from the increased UV exposure due to ozone depletion.