In which layer of the atmosphere does the temperature remain constant to an altitude of about 20 kilometers quizlet?
Terms in this set (9)
The troposphere is the bottom layer of the atmosphere where temperature decreases with an increase in altitude. The stratosphere is the layer of the atmosphere where temperature remains constant to a height of about 20 kilometers. It then begins a gradual increase until the stratopause.
How will explosive volcanic eruptions affect short term global temperatures quizlet?
How does a volcanic eruption affect climate change? Ash blocks sunlight causing temperatures to drop. … As the ash and gasses are spread around the planet they may absorb and scatter enough sunlight to cause the average global temperature of Earth to decrease.
What was the approximate increase in global temperature during the 20 th century?
What is the name of the lines of indirect evidence that scientists use to reconstruct past climates?
In paleoclimatology or the study of past climates scientists use what is known as proxy data to reconstruct past climate conditions. These proxy data are preserved physical characteristics of the environment that can stand in for direct measurements.
In which layer of the atmosphere do temperatures rise to more than 1000 C?
In which layer of the atmosphere do temperatures rise to more than 1000 C quizlet?
Thermosphere– The region of the atmosphere immediately above the mesosphere which is characterized by increasing temperatures due to absorption of very shortwave solar energy by oxygen. Temperatures rise to extremely high levels of more than 1000 degrees celsius (1832 F) in the thermosphere.
How can volcanic eruptions increase global temperatures?
Volcanic eruptions can influence climate and global temperature because of the gases and dust particles spewed into the atmosphere during the eruption. Volcanic eruptions actually cool the planet because the particles ejected from volcanoes shade incoming solar radiation.
How can volcanic eruptions lower the global temperature on Earth?
The gases and dust particles thrown into the atmosphere during volcanic eruptions have influences on climate. Most of the particles spewed from volcanoes cool the planet by shading incoming solar radiation. The cooling effect can last for months to years depending on the characteristics of the eruption.
What effect does a large volcanic eruptions typically have on the atmosphere quizlet?
Volcanoes also add carbon dioxide a greenhouse gas to the atmosphere. Carbon dioxide creates a warmer climate but the overall effect of a large volcanic eruption is climate cooling.
What do these scientists say is the cause of the increase in temperature throughout the 20th century?
Many scientists think that the increasing greenhouse gases in our atmosphere result in increasing the average temperature on Earth. … This predicted increase in global temperature is known as global warming. Earth’s average global temperature increased during the 20th century.
What substance is responsible for the increasing concentrations of nitrous oxide in the atmosphere?
About 45% of N2O emissions are produced naturally by bacteria breaking down nitrogen compounds in soil and water. The other 55% of emissions come from human activities especially from burning fuels from industrial processes and from the use of nitrogen fertilisers and manure in agriculture.
How do you think the world’s weather will change during this century?
Climate models predict that Earth’s global average temperature will rise and additional 4° C (7.2° F) during the 21st Century if greenhouse gas levels continue to rise. … According to model projections if we reduce greenhouse gas emissions there will be about a degree of warming over this century (the purple line).
What are three weather factors that are indicators of climate change?
Temperatures are rising snow and rainfall patterns are shifting and more extreme climate events – like heavy rainstorms and record high temperatures – are already happening.
What is the greenhouse effect?
What are climate change models?
In which layer does the temperature vary the most?
The Troposphere – Where Weather Happens
Its density is highest at the boundary layer where the atmosphere meets the ground and lowest at the tropopause where the stratosphere begins.
What variation does the temperature show in different layers of the atmosphere?
Which layer of the atmosphere does weather occur?
In which atmospheric layer does all our weather occur quizlet?
In which layer of the atmosphere does all weather happen? The Troposphere.
Which layer of the atmosphere is most strongly affected by conditions on the sun’s surface?
Planetary boundary layer. The lower levels of the troposphere are usually strongly influenced by Earth’s surface. This sublayer known as the planetary boundary layer is that region of the atmosphere in which the surface influences temperature moisture and wind velocity through the turbulent transfer of mass.
What happens to the temperatures in the troposphere as you go up in altitude?
How does the eruption of a volcano lower the atmospheric temperature Brainly?
When volcanoes erupt they emit a mixture of gases and particles into the air. Some of them such as ash and sulphur dioxide have a cooling effect because they (or the substances they cause) reflect sunlight away from the earth. Others such as CO2 cause warming by adding to the the greenhouse effect.
How does volcanic eruption affect the biotic factors?
Livestock and other mammals have been killed by lava flows pyroclastic flows tephra falls atmospheric effects gases and tsunami. They can also die from famine forest fires and earthquakes caused by or related to eruptions. … Eruptions can influence bird migration roosting flying ability and feeding activity.
What effects do volcanic eruptions have on environment?
Further effects are the deterioration of water quality fewer periods of rain crop damages and the destruction of vegetation. During volcanic eruptions and their immediate aftermath increased respiratory system morbidity has been observed as well as mortality among those affected by volcanic eruptions.
How do volcanoes help the Earth?
What are the causes of volcanic eruption?
What are the precautions needed during volcanic eruptions?
- Stay inside if possible with windows and doors closed.
- Wear long-sleeved shirts and long pants.
- Use goggles to protect your eyes. …
- Exposure to ash can harm your health particularly the respiratory (breathing) tract. …
- Keep your car or truck engine switched off.
What are the two most important factors in heating Earth’s atmosphere?
The two most important factors in the climate of an area are temperature and precipitation. The yearly average temperature of the area is obviously important but the yearly range in temperature is also important. Some areas have a much larger range between highest and lowest temperature than other areas.
What do air bubbles in the Antarctic ice sheet show?
how was glacial ice aided the study of climate change? Glacial ice contains trapped air bubbles that archive former atmospheric carbon dioxide concentrations. … air bubbles in the antarctic ice sheet show that ? carbon dioxide is relatively low during cold periods.
What is the green house effect quizlet?
The greenhouse effect is a process in which the warming of earth takes place mostly as a result of excess greenhouse gases which enclose and trap energy that would have otherwise left earth. … A biologically sound process the Greenhouse was fashioned by the earth in order to maintain temperature and trap heat.
What is the biggest contributor to climate change?
Globally the two biggest sectors that contribute to climate change are electricity generation (~25%) and food & land use (~24%). In other words burning coal oil and natural gas to generate electricity is the single largest source of global emissions but the food & land use sector is nearly tied with it.
What is the major cause of the 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.
What is the major cause for climate change?
Human activity is the main cause of climate change. People burn fossil fuels and convert land from forests to agriculture. Since the beginning of the Industrial Revolution people have burned more and more fossil fuels and changed vast areas of land from forests to farmland.
What causes nitrous oxide in the atmosphere?
Which gas has highest concentration in the atmosphere?
The most abundant gas present in the atmosphere is nitrogen. It comprises 78 per cent of the total atmosphere. Oxygen amounts to 21% and argon amounts to 0.9%.
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