Readers ask: What Are Greenhouse Gases Yahoo Answers?

What are greenhouse gases short answer?

Greenhouse gases include water vapour, carbon dioxide, methane, nitrous oxide, ozone and some artificial chemicals such as chlorofluorocarbons (CFCs). The absorbed energy warms the atmosphere and the surface of the Earth.

What is greenhouse gas explain?

greenhouse gas, any gas that has the property of absorbing infrared radiation (net heat energy) emitted from Earth’s surface and reradiating it back to Earth’s surface, thus contributing to the greenhouse effect. Carbon dioxide, methane, and water vapour are the most important greenhouse gases.

What are greenhouse gases Class 9?

Gases such as carbon dioxide,methane,ozone,CFCs. are called green house gases. Human beings are adding large amount of carbon dioxide and methane to atmosphere. These CHG trap the heat(infra-red radiation)reflected by the earth.

What are greenhouse gases give examples?

Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic. Those that are man-made include the chlorofluorocarbons (CFCs), hydrofluorocarbons (HFCs) and Perfluorocarbons (PFCs), as well as sulfur hexafluoride (SF6).

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Which is not a greenhouse gas?

The various greenhouse gases are carbon dioxide, methane, chlorofluorocarbon, ozone, nitrous oxide, and water vapor. Hence the gas which is not a greenhouse gas is nitrogen and the correct answer for the given question is option d).

Why is it called greenhouse?

Greenhouses were originally referred to as botanical gardens. This is because the same process that warms up the earth also takes place in a greenhouse, where the glass structure will capture the sunlight and the area under the glass will heat up.

What are the causes of greenhouse effect?

Greenhouse effect, a warming of Earth’s surface and troposphere (the lowest layer of the atmosphere) caused by the presence of water vapour, carbon dioxide, methane, and certain other gases in the air. Of those gases, known as greenhouse gases, water vapour has the largest effect.

Are greenhouse gases harmful?

Greenhouse gases have far-ranging environmental and health effects. They cause climate change by trapping heat, and they also contribute to respiratory disease from smog and air pollution. Extreme weather, food supply disruptions, and increased wildfires are other effects of climate change caused by greenhouse gases.

What is the most powerful greenhouse gas?

Water vapor is the most potent of the greenhouse gases in Earth’s atmosphere, and it’s sort of a unique player among the greenhouse gases.

What are the top 10 causes of global warming?

The Top 10 Causes of Global Warming

  • Farming.
  • Deforestation.
  • Fertilizers.
  • Oil Drilling.
  • Natural Gas Drilling.
  • Permafrost.
  • Garbage. As trash breaks down in landfills, it releases methane and nitrous oxide gases.
  • Volcanic Eruption. Volcanoes expel large quantities of carbon dioxide when they erupt.
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How humans can reduce the level of greenhouse gases?

Using public transportation, carpooling, biking, and walking, leads to fewer vehicles on the road and less greenhouse gases in the atmosphere. Cities and towns can make it easier for people to lower greenhouse gas emissions by adding bus routes, bike paths, and sidewalks.

What percentage of greenhouse gases are man made?

Globally, 50-65 percent of total CH4 emissions come from human activities. Methane is emitted from energy, industry, agriculture, land use, and waste management activities, described below. Note: All emission estimates from the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990–2019 (excludes land sector).

Is water a greenhouse gas?

Warmer air holds more water. And since water vapor is a greenhouse gas, more water absorbs more heat, inducing even greater warming and perpetuating a positive feedback loop.

Where do greenhouse gases come from?

In the United States, most of the emissions of human-caused (anthropogenic) greenhouse gases (GHG) come primarily from burning fossil fuels—coal, natural gas, and petroleum —for energy use.

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