Complete answer: – Atmosphere is essential for life because it has oxygen and other useful gases which humans need for their survival . ... It has most of the ozone present in the atmosphere. The increase in temperature with height happens because of the absorption of ultraviolet radiation from the sun by the ozone layer.
What is atmosphere essential for life?
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Why is the atmosphere essential for life for Class 9?
Answer: Atmosphere is very important for sustaining life: It contains various gases like O2, CO2, N2 which are required for various life processes by plants and animals. (ii) gas is used by plants to prepare food by the process called photosynthesis (iii) Oxygen is required for burning, combustion and respiration.
Why is atmosphere essential for life Brainly?
the atmosphere is an important part which makes the earth liveable . It blocks the harmful sun rays from reaching earth. It traps heat , making earth a comfortable temperature. And the oxygen within our atmosphere is essential for life.
Why is the atmosphere in still for life?
The atmosphere is essential for life because it is the mixture of gases forming a blanket surrounding the Earth . It maintains an appropriate climate for the sustenance of life by carrying out the following activities : (i) Atmosphere consists of oxygen. Oxygen is required by living organisms for its survival.
What is essential for our existence?
To sustain human life, certain physiological needs include air, water, food, shelter, sanitation, touch, sleep and personal space .
What is the importance of atmosphere Class 7?
Complete Answer:
The atmosphere contains the air that we breathe ; protects us from the harmful radiation of the Sun; helps to keep the planet's heat on the surface, and plays a very important role in the water cycle.
Why is water essential to life?
Water's extensive capability to dissolve a variety of molecules has earned it the designation of “universal solvent,” and it is this ability that makes water such an invaluable life-sustaining force. On a biological level, water's role as a solvent helps cells transport and use substances like oxygen or nutrients.
What are the two forms of oxygen found in the atmosphere?
Oxygen is called diatomic oxygen and ozone is known as triatomic oxygen .
Is there gravity in the atmosphere?
The atmosphere is the push and pull on gravity . Space has no atmosphere (and therefore no gravity). Responses for Kelly: Because out of all the planets, most don't have an atmosphere and there is still gravity.
Why is water essential for life Brainly?
Water is essential simply because it's a liquid Earth-like temperatures . Because it flows water, provides an efficient way to transfer substances from a cell to the cell's environment.
How is the presence of ozone layer useful for the survival of life forms on the Earth?
The ozone layer is a natural layer of gas in the upper atmosphere that protects humans and other living things from harmful ultraviolet (UV) radiation from the sun. ... The ozone layer filters out most of the sun's harmful UV radiation and is therefore crucial to life on Earth.
How does the atmosphere help the Earth?
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.
Is life possible without atmosphere?
All living things need some of the gases in air for life support. Without an atmosphere, Earth would likely be just another lifeless rock . Earth's atmosphere, along with the abundant liquid water at Earth's surface, are the keys to our planet's unique place in the solar system.
What's the purpose of existence?
The main purpose of our existence is to live with peace and to serve God ,learn,work and help peoples while need to help .
