why do we need the atmosphere

Ans: Atmosphere is the veil of odourless,tasteless and colourless gases,dust particles and water vapour surrounding the earth which forms a protective boundary between the outer space and the biosphere. It is composed of different gases in different volumes.

Why is the atmosphere so important to us write at least five advantages?

The atmosphere is an important part of what makes Earth livable. It blocks some of the Sun’s dangerous rays from reaching Earth. It traps heat, making Earth a comfortable temperature. And the oxygen within our atmosphere is essential for life.

Which is the most important layer of the atmosphere Why do you think it is important?

Importance of troposphere to life on earth

The study of the troposphere is very important because we breathe the air in this layer of air. The troposphere contains about 85% of the atmosphere’s total mass.

Which is the most important layer of the atmosphere Why do you think it is important class 7?

Ans: Troposphere is considered as the most important layer of the atmosphere because:- A) All weather phenomena, such as, cloud, rainfall, storms etc. occur in this layer. B) The temperature of the air decreases with the increase in height at rate of 1°c for every 165 m, which is known as normal lapse rate.

Can we survive without the atmosphere?

If Earth had no atmosphere, apart from having no air to breathe, the surface of the Earth would be 0 degrees Fahrenheit. … The atmosphere contains the warmth we all need to survive, the oxygen we all breathe, and carries the rain we all need. Without our atmosphere life as we know it would cease to exist.

How does the atmosphere help to regulate the earth’s temperature?

The atmosphere also helps to regulate Earth’s temperature. … Every day, sunlight (the sun’s radiation) travels through the atmosphere and warms the planet. The atmosphere helps to trap this warmth on Earth – if you remember from the introduction, this process is called the greenhouse effect.

What is structure of atmosphere?

The atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere. A further region at about 500 km above the Earth’s surface is called the exosphere.

What is an example of a connection between atmosphere and biosphere?

the atmosphere, which contains all of the planet’s air. These spheres are closely connected. For example, many birds (biosphere) fly through the air (atmosphere), while water (hydrosphere) often flows through the soil (lithosphere).

What is a fact about atmosphere?

The atmosphere is a layer of gases most commonly referred to as air that is retained by the gravity of earth. The atmosphere surrounds the planet, protecting it by absorbing the ultraviolet radiation from the sun, and regulating the temperature extremes that would otherwise occur between day and night.

What does the atmosphere protect us from?

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.

What is the main function of the atmosphere?

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 …

What would happen if there was no atmosphere?

If there were no atmosphere around the earth, the temperature would get affected. In the absence of atmosphere, there would be no life, no rains, no winds, no fires and also no ozone layer that would be used as a protection layer against harmful radiations.

Why is it called atmosphere?

An atmosphere (from Ancient Greek ἀτμός (atmós) ‘vapour, steam’, and σφαῖρα (sphaîra) ‘sphere’) is a layer of gas or layers of gases that envelope a planet, and is held in place by the gravity of the planetary body.

What is a person’s atmosphere?

An atmosphere is a surrounding environment or influence. If you and your coworkers talk behind each other’s backs, you will create a nasty atmosphere at work.

Why are the earths spheres important?

Earth’s Spheres Interact

These are the geosphere, hydrosphere, biosphere and atmosphere. Together, they make up all of the components of our planet, both living and non-living. … This is important because these interactions are what drive Earth’s processes. Material on Earth doesn’t stay how it is.

What is atmosphere Class 11?

The atmosphere is composed of gases, water vapour and dust particles. The proportion of gases changes in the higher layers of the atmosphere in such a way that oxygen will be almost in negligible quantity at the height of 120 km.

What is atmosphere short answer Class 3?

Thick envelop of air around the earth is called atmosphere. Air is a mixture of many gases like oxygen, nitrogen, carbon dioxide, argon etc. … We inhale oxygen from air. Atmosphere contains 21% oxygen, 78% nitrogen and 1% other gases.