Question

Give reasons of the following.
1- Nitrogen is necessary in the atmosphere.
2- Global warming is an international concern.
3- There is a cyclonic movement near the Earth's surface.
4- Jet planes leave a trail behind as it moves.
5- The composition of the atmosphere is not the same everywhere.
6- The atmosphere is necessary for human survival.​

Answer 1

Answer :

1. Nitrogen (N) is one of the building blocks of life: it is essential for all plants and animals to survive. Nitrogen (N2) makes up almost 80% of our atmosphere, but it is an unreactive form that is not accessible to us. Humans and most other species on earth require nitrogen in a “fixed,” reactive form.
2. I don't know
3. The winds in the upper atmosphere, 2 – 3 km above the surface, are free from frictional effect of the surface and are controlled by the pressure gradient and the Coriolis force. ... This wind is known as the geostrophic wind. The wind movement around a low is called cyclonic circulation.
4. Jets leave white trails, or contrails, in their wakes for the same reason you can sometimes see your breath. The hot, humid exhaust from jet engines mixes with the atmosphere, which at high altitude is of much lower vapor pressure and temperature than the exhaust gas.
5. Yes, air composition is basically the same everywhere on the surface of the Earth: it's approximately 79% nitrogen, 20% oxygen, 1% a mix of lots of other stuff. ... Some places have more pollutants in the air than others, and these pollutants can be different, too. Air pressure is different depending on your altitude.
6. Atmosphere is essential for life because it has oxygen and other useful gases which humans need for their survival. The different layers of the atmosphere which help in our survival are: ... In this layer of the atmosphere, the temperature gets colder as the distance from the earth increases.

Answer 2

1. Nitrogen (N) is one of the building blocks of life: it is essential for all plants and animals to survive. Nitrogen (N2) makes up almost 80% of our atmosphere, but it is an unreactive form that is not accessible to us. Humans and most other species on earth require nitrogen in a “fixed,” reactive form.
2. Global warming is an aspect of climate change, referring to the long-term rise of the planet's temperatures. It is caused by increased concentrations of greenhouse gases in the atmosphere, mainly from human activities such as burning fossil fuels, and farming.
3. The reason for this is the Coriolis Effect. The Coriolis Effect causes any body that moves on a rotating planet to turn to the right (clockwise) in the northern hemisphere and to the left (counterclockwise) in the southern hemisphere
4. Jets leave white trails, or contrails, in their wakes for the same reason we can sometimes see your breath. The hot, humid exhaust from jet engines mixes with the atmosphere, which at high altitude is of much lower vapor pressure and temperature than the exhaust gas.
5. Because air masses are constantly moving, Standard Dry Air is not accurate everywhere at once. Nitrogen and oxygen make up about 99 percent of Earth's air. People and other animals need oxygen to live. Carbon dioxide, a gas that plants depend on, makes up less than .
6. 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.

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