FREC EXAM 2 NEWEST 2026 (GRADED A+ 100% DETAILED VERIFIED ANSWERS)
Which of the following is not common to all tropical rainforests?
a) Location in the tropics
b) Receive at least 80 inches of rain per year
c) Most of the plants and animals live in the canopy
d) Forest forms around a large river system
e) High biodiversity - ANSWER✅ d) forest forms around a large river system
The greenhouse effect is beneficial as it helps to sustain life on earth by naturally trapping
heat in the atmosphere.
a) True b) False - ANSWER✅ a) true
The most abundant greenhouse gas is a) Carbon dioxide
b) Methane
c) Water vapor
d) Nitrous oxide
e) Nitrogen - ANSWER✅ c) water vapor
Which activity is the largest source of US greenhouse gases?
a) Vehicle emissions
b) Factory emissions
c) Electricity generation
,d) Geothermal power - ANSWER✅ c) electricity generation
Drip leaves are characteristic of which type of forest?
a) Boreal
b) Temperate deciduous
c) Tropical rainforest - ANSWER✅ c) tropical rainforest
In the undisturbed tropical rainforest, the canopy blocks about 95% of the incoming
sunlight, causing it to be relatively dark at the forest floor.
a) True b) False - ANSWER✅ a) true
Which of the following are concerns about slash and burn agriculture?
a) Not enough time is left between harvests, so the process is unsustainable
b) The practice can increase deforestation and loss of primary forest
c) Burning of the forest releases carbon into the atmosphere
d) All of the above
e) None of the above - ANSWER✅ d) all of the above
Which forest biome has the longest history of major anthropogenic disturbance such as
agriculture and development?
a) Boreal
b) Temperate
,c) Mediterranean
d) Tropical - ANSWER✅ b) temperate
What type of radiation do greenhouse gasses trap?
a) Shortwave radiation
b) Longwave radiation
c) Microwave electromagnetic radiation d) Radio wave electromagnetic radiation -
ANSWER✅ b) longwave radiation
Which of the following is not a greenhouse gas?
a) Carbon dioxide
b) Water vapor
c) Methane
d) Nitrogen - ANSWER✅ d) nitrogen
Which process describes the balance of CO2 as it moves into and out of the atmosphere
over relatively short time periods?
a) The carbon cycle
b) The carbon budget - ANSWER✅ a) the carbon cycle
Tropical rainforests are characterized by poor and infertile soils. a) True
b) False - ANSWER✅ true
, Emergent trees are characteristic of:
a) The Mediterranean forests
b) The tropical rainforest
c) The temperate rainforest
d) The temperate deciduous forest
e) The boreal forest - ANSWER✅ b) tropical rainforest
A type of agriculture that involves clearing and burning forest land as a way of fertilizing the
soil is known as:
a) Livestock ranching
b) Shifting cultivation
c) Crop rotation
d) Deep tillage - ANSWER✅ b) shifting cultivation
One way to improve the sustainability of slash and burn agriculture is to increase the
intensity of the practice and decrease the time between repeat planting/burning.
a) True b) False - ANSWER✅ b) false
Which rainforest region produces 60-80% of its own rainfall
a) The Amazon
b) The Congo
c) The rainforests of Southeast Asia - ANSWER✅ a) the amazon
Which of the following is not common to all tropical rainforests?
a) Location in the tropics
b) Receive at least 80 inches of rain per year
c) Most of the plants and animals live in the canopy
d) Forest forms around a large river system
e) High biodiversity - ANSWER✅ d) forest forms around a large river system
The greenhouse effect is beneficial as it helps to sustain life on earth by naturally trapping
heat in the atmosphere.
a) True b) False - ANSWER✅ a) true
The most abundant greenhouse gas is a) Carbon dioxide
b) Methane
c) Water vapor
d) Nitrous oxide
e) Nitrogen - ANSWER✅ c) water vapor
Which activity is the largest source of US greenhouse gases?
a) Vehicle emissions
b) Factory emissions
c) Electricity generation
,d) Geothermal power - ANSWER✅ c) electricity generation
Drip leaves are characteristic of which type of forest?
a) Boreal
b) Temperate deciduous
c) Tropical rainforest - ANSWER✅ c) tropical rainforest
In the undisturbed tropical rainforest, the canopy blocks about 95% of the incoming
sunlight, causing it to be relatively dark at the forest floor.
a) True b) False - ANSWER✅ a) true
Which of the following are concerns about slash and burn agriculture?
a) Not enough time is left between harvests, so the process is unsustainable
b) The practice can increase deforestation and loss of primary forest
c) Burning of the forest releases carbon into the atmosphere
d) All of the above
e) None of the above - ANSWER✅ d) all of the above
Which forest biome has the longest history of major anthropogenic disturbance such as
agriculture and development?
a) Boreal
b) Temperate
,c) Mediterranean
d) Tropical - ANSWER✅ b) temperate
What type of radiation do greenhouse gasses trap?
a) Shortwave radiation
b) Longwave radiation
c) Microwave electromagnetic radiation d) Radio wave electromagnetic radiation -
ANSWER✅ b) longwave radiation
Which of the following is not a greenhouse gas?
a) Carbon dioxide
b) Water vapor
c) Methane
d) Nitrogen - ANSWER✅ d) nitrogen
Which process describes the balance of CO2 as it moves into and out of the atmosphere
over relatively short time periods?
a) The carbon cycle
b) The carbon budget - ANSWER✅ a) the carbon cycle
Tropical rainforests are characterized by poor and infertile soils. a) True
b) False - ANSWER✅ true
, Emergent trees are characteristic of:
a) The Mediterranean forests
b) The tropical rainforest
c) The temperate rainforest
d) The temperate deciduous forest
e) The boreal forest - ANSWER✅ b) tropical rainforest
A type of agriculture that involves clearing and burning forest land as a way of fertilizing the
soil is known as:
a) Livestock ranching
b) Shifting cultivation
c) Crop rotation
d) Deep tillage - ANSWER✅ b) shifting cultivation
One way to improve the sustainability of slash and burn agriculture is to increase the
intensity of the practice and decrease the time between repeat planting/burning.
a) True b) False - ANSWER✅ b) false
Which rainforest region produces 60-80% of its own rainfall
a) The Amazon
b) The Congo
c) The rainforests of Southeast Asia - ANSWER✅ a) the amazon
