Atmospheric Sciences

The major non-varying constituents of the atmosphere are nitrogen (about 78%) and oxygen (about 21%). These gases are considered non-varying because their concentrations remain relatively stable over time compared to other trace gases that can vary in concentration.

The troposphere is the layer of the atmosphere that extends to an average altitude of about 12 km. This is where most weather phenomena occur and where temperature generally decreases with increasing altitude.

1013.25 hPa was selected as the standard atmospheric pressure because it is the average pressure at sea level in a region without weather disturbances. It serves as a reference point for comparing and measuring atmospheric pressure changes across different locations and elevations.

The surface of the earth is at the bottom of an atmospheric sea. The standard atmospheric pressure po is measured in various units:

1 atmosphere = 760 mmHg = 29.92 inHg = 14.7 lb/in² = 101325 Pa = 1013.25 mbar = 1013.25 hPa.

Carbon dioxide absorbed by the oceans can lead to ocean acidification, which can harm marine life such as corals and shellfish. Increased levels of carbon dioxide in the atmosphere can also contribute to global warming, leading to rising sea levels and changes in ocean currents that can impact the hydrosphere.

The troposphere and stratosphere are responsible for the majority of solar radiation absorption in the atmosphere. The troposphere absorbs most of the incoming solar energy through the greenhouse effect, while the stratosphere absorbs ultraviolet radiation from the sun through the ozone layer.

The average altitude of the Antarctic continent is around 2,500 meters (8,200 feet) above sea level. However, this can vary significantly depending on the specific location within Antarctica.

The amount of heat energy in the Earth's surface is referred to as geothermal energy. This energy is generated from the heat stored within the Earth's crust and can be harnessed for various applications such as electricity generation and heating.

Several thousands. Most of them are the size of a grain of rice or smaller. A few each day may be the size of a baseball or occasionally the size of a basketball.

Once a week or so, the Earth is hit by a rock the size of a car, and once every few months, we get hit by something the size of a house. A couple of months ago, a meteor the size of a house exploded over central Indonesia; it scared a lot of folks, but apparently did no damage.

The VAST majority of these burn up completely in the atmosphere, surviving as nothing but dust. A few do make it to the Earth, often in small (fist-sized) chunks. Very few do any damage. Only a few people are known to have been hit by a meteorite; there was a boy in Germany last year who was struck in the hand by a meteorite the size of a pea.

Every few hundred years, bigger things hit the Earth, and some do a lot of damage. In 1908, a meteor or small comet exploded high in the atmosphere near a place called Tunguska, Siberia, causing an explosion the size of a nuclear bomb. 5000 years ago, a meteor struck in the Indian Ocean causing a tsunami, which may be the source of the "Great Flood" legends in Gilgamesh and Noah's Ark. 14000 years ago, something hit northern Canada causing the "Younger Dryas" mini-ice age.

The asthenosphere is a partially molten layer of the Earth's upper mantle. It is in a plastic state, meaning that it can flow slowly under stress but is not completely liquid. This characteristic allows for the movement of tectonic plates.

I suppose that you think to minor noble gases.

First of all, the meteoroid has a lot of energy. It may be small - the size of a grain of sand perhaps - but it comes with a speed between 10 and 70 kilometers per second. I read that the light you see is caused, not so much by heat effects, but by recombination. That means that electrons are ripped away from their atoms, and when they recombine, they emit light.

First of all, the meteoroid has a lot of energy. It may be small - the size of a grain of sand perhaps - but it comes with a speed between 10 and 70 kilometers per second. I read that the light you see is caused, not so much by heat effects, but by recombination. That means that electrons are ripped away from their atoms, and when they recombine, they emit light.

First of all, the meteoroid has a lot of energy. It may be small - the size of a grain of sand perhaps - but it comes with a speed between 10 and 70 kilometers per second. I read that the light you see is caused, not so much by heat effects, but by recombination. That means that electrons are ripped away from their atoms, and when they recombine, they emit light.

First of all, the meteoroid has a lot of energy. It may be small - the size of a grain of sand perhaps - but it comes with a speed between 10 and 70 kilometers per second. I read that the light you see is caused, not so much by heat effects, but by recombination. That means that electrons are ripped away from their atoms, and when they recombine, they emit light.

The atmosphere is heated below primarily through the absorption of solar radiation by the Earth's surface. This leads to the gradual warming of the air closest to the surface through conduction and convection. Additionally, heat is also transferred from the surface to the atmosphere through processes like evaporation and condensation.

Over 40 billion tons of carbon dioxide are emitted into the atmosphere each year, primarily from human activities such as burning fossil fuels, deforestation, and industrial processes. These emissions contribute to global warming and climate change.

The total mass of air surrounding the Earth from the uppermost thermosphere down to the troposphere is estimated to be around 5.15×10^18 kg. The majority of this mass is concentrated in the lower layers of the atmosphere, with the troposphere containing about 75% of the total atmospheric mass.

Oxygen exits the plant through the stomata. Water vapors also exits through the stomata.

The four major components of Earth's atmosphere are nitrogen (78%), oxygen (21%), argon (0.9%), and carbon dioxide (0.04%). These gases help regulate temperature, support life, and protect against harmful radiation.

From the Earth outward the layers of the atmosphere are; Troposphere, Stratosphere, Mesosphere, Thermosphere, Exosphere. These layers are divided by whether the temperature increases or deceases with an increase in altitude within the layer.

The ozone is a hole in the earth that is caused by the suns ultraviolet rays.

Ozone is important because it protects all life on Earth. It is also important that it be above the troposphere, since it is hazardous to breathe. It is NOT a hole in the Earth.

Ozone is an allotrope of oxygen, that absorbs UV-B. UV-B damages the DNA of any organism that encounters it. This causes cataracts, cancer, mutation, loss of crop fields, and loss of arable land.

And Also, it could deplete all cheese and cows that make milk and burn them to ash when the sun comes out during the day.

The blanket of air that surrounds the Earth is called the atmosphere. It is made up of different layers of gases that protect and sustain life on our planet.

The main gases present in Earth's atmosphere today are nitrogen (about 78%), oxygen (about 21%), argon (about 0.93%), and carbon dioxide (about 0.04%). Other gases such as water vapor, methane, and trace amounts of other gases are also present.

As one gets above Earth's atmosphere, the sky transitions from a gradient of blue to black due to the scattering of sunlight by the atmosphere. Beyond the atmosphere, the sky appears completely black as there is no atmosphere to scatter sunlight, revealing the vast darkness of space.

Nitrogen compromises half of Earth's atmosphere, with oxygen making up most of the rest. Both nitrogen and oxygen are essential gases for supporting life on Earth.

The main determining factor in defining boundaries between layers of Earth's atmosphere is the temperature gradient. As you move away from the Earth's surface, the temperature changes, creating distinct layers characterized by variations in temperature (troposphere, stratosphere, mesosphere, thermosphere, and exosphere).

Infinite and Unknown.

But I think the point is "night sky" meaning, OUR night sky, or our visual field here on Earth. It's not a question of how many stars are in the universe. The answer depends on your location and the brightness of ambient terrestrial lights but can be as many as 13,000.