Agry 335 final exam Questions with
complete solution || LATEST UPDATE
2026
Dendrochronology is the study of -CORRECTANSWER tree rings
Which relationship below is correct?
a) Ice cores have more volcanic ash when temperatures are higher.
b) The amount of oxygen-18 in glacial ice is higher when temperatures are cooler.
c)Warm, wet years generally produce narrower tree rings than those formed during
cold, dry years.
d) Relative abundances of oxygen-16 and oxygen-18 in coral skeletons can indicate the
temperature of the water in which the coral grew.
e) Fossil pollen is more abundant when temperatures are lower. -CORRECTANSWER
Relative abundances of oxygen-16 and oxygen-18 in coral skeletons can indicate the
temperature of the water in which the coral grew.
A single volcanic eruption, such as Mount Tambora, affects climate over a period of
____ -CORRECTANSWER a year to a few years
Variations in the shape of Earth's orbit around the Sun are called -CORRECTANSWER
eccentricity
,Which atmospheric constituent predominately cools the atmosphere? -
CORRECTANSWER aerosols
The primary cause for an increase in atmospheric CO2 is combustion of fossil fuels.
Another significant contributor to CO2 increase is _____ -CORRECTANSWER
deforestation
pick the positive feedback mechanisms:
- Deforestation near the Sahara Desert causes the soil to be exposed. Exposed soil
evaporates moisture more readily. Insufficient moisture leads to the death of trees.
- A warmer atmosphere causes more evaporation. Water vapor is a greenhouse gas, so
this increases the temperature.
- Warmer temperatures cause snow to melt. This makes the ground darker, allowing
more solar radiation to be absorbed. The warmer ground warms the atmosphere.
- Earth warms, and radiation cools Earth, much like a warm cup of coffee cools down if
you let it sit on a table.
- A warmer atmosphere causes more evaporation. More water vapor in the atmosphere
leads to more cloud cover, which reflects more incoming solar radiation back to space
and cools the surface. -CORRECTANSWER - Deforestation near the Sahara Desert
causes the soil to be exposed. Exposed soil evaporates moisture more readily.
Insufficient moisture leads to the death of trees.
- A warmer atmosphere causes more evaporation. Water vapor is a greenhouse gas, so
this increases the temperature.
, - Warmer temperatures cause snow to melt. This makes the ground darker, allowing
more solar radiation to be absorbed. The warmer ground warms the atmosphere.
____ occurs when a change in one part of the climate system triggers a change in
another part of the climate system -CORRECTANSWER A climate-feedback
mechanism
When a carbon dioxide in the atmosphere dissolves in water, it causes -
CORRECTANSWER an increase in ocean acidity
Which of the following is not likely consequences of climate change? -
CORRECTANSWER an increase in the pH of the oceans
The Koppen classification system classifies climate regions based on ___ -
CORRECTANSWER mean monthly and annual temperature and precipitation in the
region
In the Köppen classification system, four of the climate regions are classified by _____,
and the fifth climate region is classified by -CORRECTANSWER temperature,
precipitation
complete solution || LATEST UPDATE
2026
Dendrochronology is the study of -CORRECTANSWER tree rings
Which relationship below is correct?
a) Ice cores have more volcanic ash when temperatures are higher.
b) The amount of oxygen-18 in glacial ice is higher when temperatures are cooler.
c)Warm, wet years generally produce narrower tree rings than those formed during
cold, dry years.
d) Relative abundances of oxygen-16 and oxygen-18 in coral skeletons can indicate the
temperature of the water in which the coral grew.
e) Fossil pollen is more abundant when temperatures are lower. -CORRECTANSWER
Relative abundances of oxygen-16 and oxygen-18 in coral skeletons can indicate the
temperature of the water in which the coral grew.
A single volcanic eruption, such as Mount Tambora, affects climate over a period of
____ -CORRECTANSWER a year to a few years
Variations in the shape of Earth's orbit around the Sun are called -CORRECTANSWER
eccentricity
,Which atmospheric constituent predominately cools the atmosphere? -
CORRECTANSWER aerosols
The primary cause for an increase in atmospheric CO2 is combustion of fossil fuels.
Another significant contributor to CO2 increase is _____ -CORRECTANSWER
deforestation
pick the positive feedback mechanisms:
- Deforestation near the Sahara Desert causes the soil to be exposed. Exposed soil
evaporates moisture more readily. Insufficient moisture leads to the death of trees.
- A warmer atmosphere causes more evaporation. Water vapor is a greenhouse gas, so
this increases the temperature.
- Warmer temperatures cause snow to melt. This makes the ground darker, allowing
more solar radiation to be absorbed. The warmer ground warms the atmosphere.
- Earth warms, and radiation cools Earth, much like a warm cup of coffee cools down if
you let it sit on a table.
- A warmer atmosphere causes more evaporation. More water vapor in the atmosphere
leads to more cloud cover, which reflects more incoming solar radiation back to space
and cools the surface. -CORRECTANSWER - Deforestation near the Sahara Desert
causes the soil to be exposed. Exposed soil evaporates moisture more readily.
Insufficient moisture leads to the death of trees.
- A warmer atmosphere causes more evaporation. Water vapor is a greenhouse gas, so
this increases the temperature.
, - Warmer temperatures cause snow to melt. This makes the ground darker, allowing
more solar radiation to be absorbed. The warmer ground warms the atmosphere.
____ occurs when a change in one part of the climate system triggers a change in
another part of the climate system -CORRECTANSWER A climate-feedback
mechanism
When a carbon dioxide in the atmosphere dissolves in water, it causes -
CORRECTANSWER an increase in ocean acidity
Which of the following is not likely consequences of climate change? -
CORRECTANSWER an increase in the pH of the oceans
The Koppen classification system classifies climate regions based on ___ -
CORRECTANSWER mean monthly and annual temperature and precipitation in the
region
In the Köppen classification system, four of the climate regions are classified by _____,
and the fifth climate region is classified by -CORRECTANSWER temperature,
precipitation
