CSES 2040 Test 1 UPDATED Questions
and CORRECT Answers
What percentage of the food we eat directly or indirectly comes from soil? - CORRECT
ANSWER - 90%
There are more microbes in a gram of fertile than the total population of humans that live on
earth currently. (T/F) - CORRECT ANSWER - true
Due to Hurricane Florence, most of the coastal areas of North Carolina were soaked (saturated)
with water. Under this condition, the percentage of soil air per total soil volume will be? -
CORRECT ANSWER - 0%
Too much rainfall due to Hurricane Florence has downed many trees since soil couldn't provide
enough? - CORRECT ANSWER - support
Soil is a pedosphere that means it is an interface of lithosphere, hydrosphere, biosphere and
atmosphere. Which of the
following is a component of the lithosphere?
A. H2O
B. CO2
C. rock
D. none of the above - CORRECT ANSWER -C
As discussed in this class, there are ______________ essential plant nutrients. - CORRECT
ANSWER - 17
Which of the following is an essential plant nutrient?
A. Se
B. Na
, C. I
D. none of the above - CORRECT ANSWER - D (17 of them; C, H, O, N, P, K, S, Ca,
Mg, B, Cl, Cu, Fe, Mn, Mo, Ni, Zn)
Plants get CO2 for photosynthesis from?
A. soil
B. water
C. air
D. rocks - CORRECT ANSWER -C
Per our discussion in this class, diet that contains iodine will help to prevent:
A. bipolar
B. keshan
C. social media addiction
D. none of the above - CORRECT ANSWER - D (goiter; eat more fish and dairy)
Plants take only essential nutrients selectively even if there are plenty of non-essential nutrients
in soil solution. (T/F) - CORRECT ANSWER - false (they also take up mineral elements
that are not essential for growth)
A soil is a rock and a rock is soil.(T/F) - CORRECT ANSWER - false (soil is made up of
many rocks)
Due to weathering, soil parent materials have little influence on soil properties. Thus, the ratio of
elements in rock parent material have no similarity to that of the soil. (T/F) - CORRECT
ANSWER - false (the parent materials influence soil properties)
Weathering intensity is more pronounced in tropics compared to frozen regions of the world.
(T/F) - CORRECT ANSWER - true
and CORRECT Answers
What percentage of the food we eat directly or indirectly comes from soil? - CORRECT
ANSWER - 90%
There are more microbes in a gram of fertile than the total population of humans that live on
earth currently. (T/F) - CORRECT ANSWER - true
Due to Hurricane Florence, most of the coastal areas of North Carolina were soaked (saturated)
with water. Under this condition, the percentage of soil air per total soil volume will be? -
CORRECT ANSWER - 0%
Too much rainfall due to Hurricane Florence has downed many trees since soil couldn't provide
enough? - CORRECT ANSWER - support
Soil is a pedosphere that means it is an interface of lithosphere, hydrosphere, biosphere and
atmosphere. Which of the
following is a component of the lithosphere?
A. H2O
B. CO2
C. rock
D. none of the above - CORRECT ANSWER -C
As discussed in this class, there are ______________ essential plant nutrients. - CORRECT
ANSWER - 17
Which of the following is an essential plant nutrient?
A. Se
B. Na
, C. I
D. none of the above - CORRECT ANSWER - D (17 of them; C, H, O, N, P, K, S, Ca,
Mg, B, Cl, Cu, Fe, Mn, Mo, Ni, Zn)
Plants get CO2 for photosynthesis from?
A. soil
B. water
C. air
D. rocks - CORRECT ANSWER -C
Per our discussion in this class, diet that contains iodine will help to prevent:
A. bipolar
B. keshan
C. social media addiction
D. none of the above - CORRECT ANSWER - D (goiter; eat more fish and dairy)
Plants take only essential nutrients selectively even if there are plenty of non-essential nutrients
in soil solution. (T/F) - CORRECT ANSWER - false (they also take up mineral elements
that are not essential for growth)
A soil is a rock and a rock is soil.(T/F) - CORRECT ANSWER - false (soil is made up of
many rocks)
Due to weathering, soil parent materials have little influence on soil properties. Thus, the ratio of
elements in rock parent material have no similarity to that of the soil. (T/F) - CORRECT
ANSWER - false (the parent materials influence soil properties)
Weathering intensity is more pronounced in tropics compared to frozen regions of the world.
(T/F) - CORRECT ANSWER - true
