Well one gas - Oxygen, is needed for you to live.
Greenhouse gases are helpful because they trap heat in Earth's atmosphere, which keeps the planet warm enough to support life. Without greenhouse gases, Earth would be too cold for humans, plants, and animals to survive. However, an overabundance of greenhouse gases can lead to climate change and negative impacts on ecosystems.
Recycling is helpful for the environment because we are reusing products instead of throwing them in landfill. This means that there will be less landfill to burn, meaning less toxic gases being released into the air.
Vocanoes can be helpful because the earth's first oceans and atmosphere were formed from the gases given off by volcanoes. Volcanoes have also shaped the earth's landscape, many of our mountains, islands, and plains have been built by volcanic eruptions.
Greenhouse gases are helpful because they keep the earth warm enough for life. They are essential.Too much greenhouse gases are unhelpful because they make the earth too hot. Global warming is causing climate change which may make the world very uncomfortable for our children and grandchildren.
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Inorganic substances such as phospholipids aid in the diffusion of gases through cellular membranes. Phospholipids make up the structure of cell membranes, providing a barrier that allows selective permeability of gases like oxygen and carbon dioxide. These phospholipids have a hydrophobic tail and a hydrophilic head, creating a bilayer that facilitates the diffusion of gases across the membrane.
For example the elements from the first two groups are easily combined with halogens; or noble gases are very unreactive, etc.
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You are probably referring to catalytic converters. These are mechanisms that turn harmful gases and other particles into nitrogen gas. The correct spelling will lead to you a variety of helpful websites.
You spell gases GASES
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