Question 1

Which of the following best describes Oxygen (O2)?

Accepted Answer

A) It is a gas which principally originates from volcanic sources. 
B) It is a by-product of photosynthesis. 
C) It is one of the gases from Earth's earliest atmospheres. 
D) It is now measured at 78.084% by volume in the homosphere. 
A) It is a gas which principally originates from volcanic sources. 
B) It is a by-product of photosynthesis. 
C) It is one of the gases from Earth's earliest atmospheres. 
D) It is now measured at 78.084% by volume in the homosphere.

Question 2

Why is stratospheric ozone loss a concern?

Accepted Answer

A) Stratospheric ozone is a major greenhouse gas; its loss will contribute to the cooling of the planet. 
B) Stratospheric ozone absorbs harmful ultraviolet radiation (UVB and UV
C) . 
C) Stratospheric ozone is a component of photochemical smog. 
D) Stratospheric ozone contributes to the brilliant auroras. 
A) Stratospheric ozone is a major greenhouse gas; its loss will contribute to the cooling of the planet. 
B) Stratospheric ozone absorbs harmful ultraviolet radiation (UVB and UV
C) . 
C) Stratospheric ozone is a component of photochemical smog. 
D) Stratospheric ozone contributes to the brilliant auroras.

Question 3

Which of the following best describes Nitrogen (N2)?

Accepted Answer

A) It is a key component of life,integrated into our bodies directly from the air. 
B) It is cycled through the environment via the activity of bacteria. 
C) It is a product of the radioactive decay of a form of potassium in the crust. 
D) It is now measured at 20.946% by volume in the homosphere. 
A) It is a key component of life,integrated into our bodies directly from the air. 
B) It is cycled through the environment via the activity of bacteria. 
C) It is a product of the radioactive decay of a form of potassium in the crust. 
D) It is now measured at 20.946% by volume in the homosphere.

Question 4

Why is normal precipitation always slightly acidic?

Accepted Answer

A) Precipitation dissolved carbon dioxide to form carbonic acid. 
B) Nitrogen fixing bacteria form nitric acids which evaporate into the atmosphere. 
C) Sulfur dioxide from volcanic explosions combines with water to form sulfuric acid. 
D) Chlorine,in the presence of sunlight and hydrogen,is converted to hydrochloric acid. 
A) Precipitation dissolved carbon dioxide to form carbonic acid. 
B) Nitrogen fixing bacteria form nitric acids which evaporate into the atmosphere. 
C) Sulfur dioxide from volcanic explosions combines with water to form sulfuric acid. 
D) Chlorine,in the presence of sunlight and hydrogen,is converted to hydrochloric acid.

Question 5

Why should we be concerned about (O3)in the lower troposphere?

Accepted Answer

A) It forms acid rain. 
B) It is not associated with transportation. 
C) It causes lung irritation,asthma,and susceptibility to respiratory illness in humans. 
D) It has been found to cause a shortening of the life cycle of crops and plants. 
A) It forms acid rain. 
B) It is not associated with transportation. 
C) It causes lung irritation,asthma,and susceptibility to respiratory illness in humans. 
D) It has been found to cause a shortening of the life cycle of crops and plants.

Question 6

Which of the following is correct regarding lapse rates in the troposphere?

Accepted Answer

A) The term "normal (average)lapse rate" refers to the actual lapse rate in effect at any particular time. 
B) The environmental lapse rate refers to the actual lapse rate at any particular time and may differ substantially from the normal lapse rate. 
C) The normal lapse rate is always the same as the dry adiabatic rate (DAR). 
D) Temperatures generally increase with altitude in the troposphere. 
A) The term "normal (average)lapse rate" refers to the actual lapse rate in effect at any particular time. 
B) The environmental lapse rate refers to the actual lapse rate at any particular time and may differ substantially from the normal lapse rate. 
C) The normal lapse rate is always the same as the dry adiabatic rate (DAR). 
D) Temperatures generally increase with altitude in the troposphere.

Which of the following best describes Oxygen (O2)?

Why is stratospheric ozone loss a concern?

Which of the following best describes Nitrogen (N2)?

Why is normal precipitation always slightly acidic?

Why should we be concerned about (O3)in the lower troposphere?

Which of the following is correct regarding lapse rates in the troposphere?

Essentials of Geography

Solar Energy to Earth and the Seasons

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters

Exam 3: Earths Modern Atmosphere

Which of the following best describes Oxygen (O2)?

Why is stratospheric ozone loss a concern?

Which of the following best describes Nitrogen (N2)?

Why is normal precipitation always slightly acidic?

Why should we be concerned about (O3)in the lower troposphere?

Which of the following is correct regarding lapse rates in the troposphere?

Essentials of Geography

Solar Energy to Earth and the Seasons

Atmosphere and Surface Energy Balances

Global Temperatures

Atmospheric and Oceanic Circulations

Water and Atmospheric Moisture

Weather

Water Resources

Global Climate Systems

Climate Change

The Dynamic Planet

Tectonics, earthquakes, and Volcanism

Weathering, karst Landscapes, and Mass Movement

River Systems

Oceans, coastal Processes, and Wind Processes

Glacial and Periglacial Landscapes

The Geography of Soils

Ecosystem Essentials

Terrestrial Biomes

Filters