Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. … The atmosphere protects life on earth by
shielding it from incoming ultraviolet (UV) radiation
, keeping the planet warm through insulation, and preventing extremes between day and night temperatures.
What are 3 ways the atmosphere is important to life on earth?
- Protection. The atmosphere blocks out harmful rays from the sun. …
- Water. The Earth's atmosphere contains water. …
- Oxygen and Carbon Dioxide. Life on Earth needs the atmosphere to breath. …
- Other Benefits. The atmosphere contains a large amount of nitrogen.
How does the atmosphere protect life on earth quizlet?
A mixture of gases that surrounds the Earth. What does the atmosphere protect us from?
It protects us from the sun's harmful rays
.
Why is the atmosphere helpful to life on earth?
The atmosphere
protects life on earth by shielding it from incoming ultraviolet (UV) radiation
, keeping the planet warm through insulation, and preventing extremes between day and night temperatures. The sun heats layers of the atmosphere causing it to convect driving air movement and weather patterns around the world.
Which is the most abundant gas in the atmosphere?
Gases. The most abundant naturally occurring gas is
Nitrogen (N
2
)
, which makes up about 78% of air. Oxygen (O
2
) is the second most abundant gas at about 21%. The inert gas Argon (Ar) is the third most abundant gas at .
What are the two main components of Earth's atmosphere?
The table indicates that
nitrogen and oxygen
are the main components of the atmosphere by volume. Together these two gases make up approximately 99% of the dry atmosphere. Both of these gases have very important associations with life.
Can we survive without atmosphere?
Life on Earth would be impossible in the absence of the atmosphere
– the thin layer of gas that envelops our globe, writes William Reville. … High in the atmosphere is another thin layer of a special form of oxygen called ozone.
What type of atmosphere do humans need to survive?
Oxygen
.
Atmospheric air
is only about 20 percent oxygen, but that oxygen is a key component of the chemical reactions that keep the body alive, including the reactions that produce ATP. Brain cells are especially sensitive to lack of oxygen because of their requirement for a high-and-steady production of ATP.
What are the advantages of atmosphere?
the Earth's atmosphere
protect and sustains the planets inhabitants by providing warmth and absorbing harmful solar rays
. in addition to containing the oxygen and carbon dioxide which living things need to survive the atmosphere traps the sun energy and wards off many of the dangers of the space.
What is Earth's air made of?
Earth's atmosphere is composed of about
78 percent nitrogen
, 21 percent oxygen, 0.9 percent argon, and 0.1 percent other gases. Trace amounts of carbon dioxide, methane, water vapor, and neon are some of the other gases that make up the remaining 0.1 percent.
What air is made of?
Standard Dry Air is made up of
nitrogen, oxygen, argon, carbon dioxide, neon, helium, krypton, hydrogen, and xenon
. It does not include water vapor because the amount of vapor changes based on humidity and temperature.
What are the 5 most abundant gases in the atmosphere?
- Nitrogen — 78 percent.
- Oxygen — 21 percent.
- Argon — 0.93 percent.
- Carbon dioxide — 0.04 percent.
- Trace amounts of neon, helium, methane, krypton and hydrogen, as well as water vapor.
What are the 7 layers of atmosphere?
Earth's atmosphere has a series of layers, each with its own specific traits. Moving upward from ground level, these layers are named the
troposphere, stratosphere, mesosphere, thermosphere and exosphere
. The exosphere gradually fades away into the realm of interplanetary space.
What is the coldest layer of the atmosphere?
The International Space Station orbits Earth in this layer. mesopause—the boundary between the
mesosphere
and the thermosphere; the coldest place on Earth. mesosphere—the layer in which most meteors burn up after entering Earth's atmosphere and before reaching Earth's surface.
Which is the most important component of atmosphere?
The table indicates that
nitrogen and oxygen
are the main components of the atmosphere by volume. Together these two gases make up approximately 99% of the dry atmosphere. Both of these gases have very important associations with life.
How long could we live without our atmosphere?
Based on NASA's calculation that a human needs 840 grams of oxygen per day, and the fact that Earth's atmosphere contains about 1000 billion tonnes of oxygen and the global population is 7.5 billion, it would last
around 370 years
.
