Atmospheric Sciences

An invention is some 'thing', or some idea, that is created or constructed by man; something that has never existed before. Clearly, air has been around for a lot longer than man, and is part of 'nature', therefore it cannot be classed as an invention.

No, oxygen makes up about 21% of Earth's atmosphere. Nitrogen is actually the most abundant gas, making up about 78% of the atmosphere.

About 21% of the Earth's atmosphere is oxygen.

Season exist because the earth's axis (the line passing through the planet connecting the north and south poles) is not perpendicular to the plane in which Earth orbits. Go to http://www.srh.noaa.gov/jetstream//global/global_intro.htm and look at the picture. In December, the Southern Hemisphere is pointed more toward the sun, while the Northern Hemisphere is pointed more away. The Northern Hemisphere receives less sunlight than the SH, and thus it is colder. The reverse is true in June: the NH receives more sunlight and the SH less. If the angle of inclination were 0 degrees, the two hemispheres would receive equal amounts of sunlight throughout the year. It's not correct to say that there would be NO seasons if the Earth were not tilted at 23.5 degrees. What is true is that the seasons would be more uniform at a lower angle, and more severe at a higher angle. In fact, the Earth slowly moves between angles of 22 and 24.5 degrees (it takes us 40,000 years to move from 22 to 24.5 and back to 22 degrees!), and this seemingly small difference has taken the Earth back and forth between ice ages ("glacials") and non-ice ages ("interglacials").

The sun's heat radiates out from the sun in all directions. A tiny percentage lands on earth (luckily!).

Oxygen molecules in the atmosphere primarily come from plants and other photosynthetic organisms that release oxygen during the process of photosynthesis. This process involves the conversion of carbon dioxide and water into glucose and oxygen. Additionally, a smaller amount of oxygen also comes from the breakdown of carbon dioxide molecules in the upper atmosphere by solar radiation.

Auroras are a natural occurence and have been around for longer than humans have. This question is kind of like asking "When was the first snowfall observed?"...there is no "first observation".

In science, a column header refers to the label or title assigned to a vertical column in a table or chart. It helps identify the data or information present in that particular column. Column headers are important for organizing and interpreting data accurately.

Carbon dioxide (CO2) shows the most variation in concentration in the lower atmosphere from place to place and from time to time due to a range of factors such as human activities, vegetation, and industrial processes. These factors impact the local and temporal distribution of CO2 levels, leading to fluctuations in its concentration in the lower atmosphere.

You would weigh approximately 45 pounds on Mercury if you weighed 120 pounds on Earth. This is because Mercury has lower gravity compared to Earth.

1. Relaxing
2. Vibrant
3. Cozy
4. Lively
5. Serene

The solar wind produces a number of charged particles. These charged particles crash into the atmosphere at the magnetic north pole. When a particle from the solar wind hits an atom in the atmosphere, it knocks an electron from its outer shell. When the electron bounces back to where it belongs, it gives off light. That light is the Aurora.

The change in air pressure as the airplane ascends or descends can cause your ears to pop. Your Eustachian tube, which helps regulate air pressure in your middle ear, may have trouble equalizing the pressure, leading to the popping sensation. Swallowing, chewing gum, or yawning can help relieve the pressure and stop the popping.

Gases from the sun's corona include hydrogen, helium, and smaller amounts of heavier elements like carbon and oxygen. These gases are superheated to millions of degrees Celsius, creating a halo of hot, ionized gas that extends millions of kilometers away from the sun's surface.

In a high pressure system, you can typically expect clear skies and gentle winds. These conditions are associated with stable air and minimal cloud cover, resulting in sunny and fair weather.

When one ascends in the atmosphere, the air becomes thinner, which means the molecules are more spread out, leading to lower air pressure. Additionally, the temperature typically decreases as you go higher in the atmosphere due to the decrease in density and energy of the air molecules.

The sunlit zone, also known as the euphotic zone, is the uppermost layer of the ocean where there is enough sunlight for photosynthesis to occur. It typically extends from the surface down to about 200 meters deep, varying depending on water clarity and the angle of the sun.

These materials belong to the category of rocks or stones, commonly used in construction and architecture. Granite, pumice, obsidian, limestone, sandstone, and marble each have distinct properties that make them suitable for different applications such as countertops, flooring, or sculptures.

The Aurora Australis is a natural light display in the Southern Hemisphere, similar to the Northern Lights. It appears as colorful shifting curtains of light in the night sky, typically in shades of green, pink, and purple. It is caused by solar particles interacting with the Earth's atmosphere.

Yes, some of it can. Infrared radiation is trapped by greenhouse gases, but not all of it is trapped. These gases only trap radiation in very specific parts of the electromagnetic spectrum, so there are "windows" where it can escape.

The structure of the lungs, which are surrounded by a lining called the pleura, helps to keep them inflated. The pleural pressure is lower than the pressure inside the alveoli, creating a partial vacuum that prevents the lungs from collapsing. Additionally, the presence of surfactant in the alveoli reduces surface tension, helping to maintain lung expansion.

The atmosphere begins at the surface of the Earth and extends to space. The upper levels are the thermosphere (up to about 500-650 km altitude) and the exosphere (generally from 500 to 2000 km altitude but is nearly a vacuum).

Thermosphere is the atmosphere's outermost layer with a very thin air and no definite outer limit. The reason why a space shuttle gets through it is because shuttle orbiters used ceramic tiles and heat protection.

The ionosphere is a region of Earth's atmosphere that contains a high concentration of ions and free electrons, extending roughly 50-600 km above the Earth's surface. It plays a crucial role in long-distance radio communication by reflecting radio waves back to Earth, allowing signals to be transmitted over the horizon. The ionosphere is ionized by solar radiation and is most active during periods of intense solar activity, such as during solar flares or geomagnetic storms.

Dangerous gases such as carbon dioxide and methane trap heat in the atmosphere, leading to global warming and climate change. This can result in melting ice caps, rising sea levels, and extreme weather events that disrupt ecosystems and harm wildlife. Overall, these gases contribute to the degradation of the atmosphere and the Earth's delicate balance.